diff --git a/x-pack/plugins/infra/common/source_configuration/defaults.ts b/x-pack/plugins/infra/common/source_configuration/defaults.ts
index a18cec903b60b..ac3724c80d70a 100644
--- a/x-pack/plugins/infra/common/source_configuration/defaults.ts
+++ b/x-pack/plugins/infra/common/source_configuration/defaults.ts
@@ -16,9 +16,6 @@ export const defaultSourceConfiguration: InfraSourceConfiguration = {
     type: 'index_name',
     indexName: LOGS_INDEX_PATTERN,
   },
-  fields: {
-    message: ['message', '@message'],
-  },
   inventoryDefaultView: '0',
   metricsExplorerDefaultView: '0',
   logColumns: [
diff --git a/x-pack/plugins/infra/common/source_configuration/source_configuration.ts b/x-pack/plugins/infra/common/source_configuration/source_configuration.ts
index 8881b5fab5f5f..b23c9478e3335 100644
--- a/x-pack/plugins/infra/common/source_configuration/source_configuration.ts
+++ b/x-pack/plugins/infra/common/source_configuration/source_configuration.ts
@@ -17,29 +17,8 @@
 
 /* eslint-disable @typescript-eslint/no-empty-interface */
 
-import { omit } from 'lodash';
 import * as rt from 'io-ts';
 
-/**
- * Source configuration config file properties.
- * These are properties that can appear in the kibana.yml file.
- * This is a legacy method of providing properties, and will be deprecated in the future (v 8.0.0).
- */
-
-export const sourceConfigurationConfigFilePropertiesRT = rt.type({
-  sources: rt.type({
-    default: rt.partial({
-      fields: rt.partial({
-        message: rt.array(rt.string),
-      }),
-    }),
-  }),
-});
-
-export type SourceConfigurationConfigFileProperties = rt.TypeOf<
-  typeof sourceConfigurationConfigFilePropertiesRT
->;
-
 /**
  * Log columns
  */
@@ -104,18 +83,6 @@ export type LogIndexNameReference = rt.TypeOf<typeof logIndexNameReferenceRT>;
 export const logIndexReferenceRT = rt.union([logIndexPatternReferenceRT, logIndexNameReferenceRT]);
 export type LogIndexReference = rt.TypeOf<typeof logIndexReferenceRT>;
 
-/**
- * Fields
- */
-
-const SourceConfigurationFieldsRT = rt.type({
-  message: rt.array(rt.string),
-});
-
-/**
- * Properties that represent a full source configuration, which is the result of merging static values with
- * saved values.
- */
 export const SourceConfigurationRT = rt.type({
   name: rt.string,
   description: rt.string,
@@ -123,7 +90,6 @@ export const SourceConfigurationRT = rt.type({
   logIndices: logIndexReferenceRT,
   inventoryDefaultView: rt.string,
   metricsExplorerDefaultView: rt.string,
-  fields: SourceConfigurationFieldsRT,
   logColumns: rt.array(SourceConfigurationColumnRuntimeType),
   anomalyThreshold: rt.number,
 });
@@ -131,20 +97,8 @@ export const SourceConfigurationRT = rt.type({
 /**
  * Stored source configuration as read from and written to saved objects
  */
-const SavedSourceConfigurationFieldsRuntimeType = rt.partial(
-  omit(SourceConfigurationFieldsRT.props, ['message'])
-);
 
-export type InfraSavedSourceConfigurationFields = rt.TypeOf<
-  typeof SavedSourceConfigurationFieldsRuntimeType
->;
-
-export const SavedSourceConfigurationRuntimeType = rt.intersection([
-  rt.partial(omit(SourceConfigurationRT.props, ['fields'])),
-  rt.partial({
-    fields: SavedSourceConfigurationFieldsRuntimeType,
-  }),
-]);
+export const SavedSourceConfigurationRuntimeType = rt.partial(SourceConfigurationRT.props);
 
 export interface InfraSavedSourceConfiguration
   extends rt.TypeOf<typeof SavedSourceConfigurationRuntimeType> {}
@@ -154,10 +108,8 @@ export interface InfraSavedSourceConfiguration
  * hardcoded defaults.
  */
 
-const StaticSourceConfigurationFieldsRuntimeType = rt.partial(SourceConfigurationFieldsRT.props);
 export const StaticSourceConfigurationRuntimeType = rt.partial({
   ...SourceConfigurationRT.props,
-  fields: StaticSourceConfigurationFieldsRuntimeType,
 });
 
 export interface InfraStaticSourceConfiguration
@@ -167,11 +119,8 @@ export interface InfraStaticSourceConfiguration
  * Full source configuration type after all cleanup has been done at the edges
  */
 
-export type InfraSourceConfigurationFields = rt.TypeOf<typeof SourceConfigurationFieldsRT>;
-
 export const SourceConfigurationRuntimeType = rt.type({
   ...SourceConfigurationRT.props,
-  fields: SourceConfigurationFieldsRT,
   logColumns: rt.array(SourceConfigurationColumnRuntimeType),
 });
 
diff --git a/x-pack/plugins/infra/server/deprecations.test.ts b/x-pack/plugins/infra/server/deprecations.test.ts
deleted file mode 100644
index 318f1e50d6662..0000000000000
--- a/x-pack/plugins/infra/server/deprecations.test.ts
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License
- * 2.0; you may not use this file except in compliance with the Elastic License
- * 2.0.
- */
-
-import { getInfraDeprecationsFactory } from './deprecations';
-
-describe('Infra plugin deprecations', () => {
-  describe('Source configuration deprecations', () => {
-    test('returns no deprecations when all fields are set to the default values', async () => {
-      const sources = {
-        getAllSourceConfigurations: () => [
-          {
-            configuration: {
-              name: 'Default',
-              fields: {
-                timestamp: '@timestamp',
-                tiebreaker: '_doc',
-                container: 'container.id',
-                host: 'host.name',
-                pod: 'kubernetes.pod.uid',
-              },
-            },
-          },
-          {
-            configuration: {
-              name: 'Alternate',
-              fields: {
-                timestamp: '@timestamp',
-                tiebreaker: '_doc',
-                container: 'container.id',
-                host: 'host.name',
-                pod: 'kubernetes.pod.uid',
-              },
-            },
-          },
-        ],
-      };
-      const getDeprecations = getInfraDeprecationsFactory(sources as any);
-      const deprecations = await getDeprecations({} as any);
-      expect(deprecations.length).toBe(0);
-    });
-  });
-  test('returns expected deprecations when some fields are not set to default values in one or more source configurations', async () => {
-    const sources = {
-      getAllSourceConfigurations: () => [
-        {
-          configuration: {
-            name: 'Default',
-            fields: {
-              timestamp: 'not-@timestamp',
-              tiebreaker: '_doc',
-              container: 'not-container.id',
-              host: 'host.name',
-              pod: 'not-kubernetes.pod.uid',
-            },
-          },
-        },
-        {
-          configuration: {
-            name: 'Alternate',
-            fields: {
-              timestamp: 'not-@timestamp',
-              tiebreaker: 'not-_doc',
-              container: 'container.id',
-              host: 'not-host.name',
-              pod: 'kubernetes.pod.uid',
-            },
-          },
-        },
-      ],
-    };
-    const getDeprecations = getInfraDeprecationsFactory(sources as any);
-    const deprecations = await getDeprecations({} as any);
-    expect(deprecations.length).toBe(5);
-    expect(
-      deprecations.map((d) =>
-        d.title.replace(/Source configuration field "(.*)" is deprecated./, '$1')
-      )
-    ).toEqual(
-      expect.arrayContaining(['timestamp', 'tiebreaker', 'container ID', 'host name', 'pod ID'])
-    );
-  });
-});
diff --git a/x-pack/plugins/infra/server/deprecations.ts b/x-pack/plugins/infra/server/deprecations.ts
deleted file mode 100644
index 93d93f32ff5c0..0000000000000
--- a/x-pack/plugins/infra/server/deprecations.ts
+++ /dev/null
@@ -1,218 +0,0 @@
-/*
- * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
- * or more contributor license agreements. Licensed under the Elastic License
- * 2.0; you may not use this file except in compliance with the Elastic License
- * 2.0.
- */
-
-import { i18n } from '@kbn/i18n';
-import { get } from 'lodash';
-import {
-  ConfigDeprecationProvider,
-  ConfigDeprecation,
-  DeprecationsDetails,
-  GetDeprecationsContext,
-} from '@kbn/core/server';
-import {
-  TIMESTAMP_FIELD,
-  TIEBREAKER_FIELD,
-  CONTAINER_FIELD,
-  HOST_FIELD,
-  POD_FIELD,
-} from '../common/constants';
-import { InfraSources } from './lib/sources';
-
-const deprecatedFieldMessage = (fieldName: string, defaultValue: string, configNames: string[]) =>
-  i18n.translate('xpack.infra.deprecations.deprecatedFieldDescription', {
-    defaultMessage:
-      'Configuring the "{fieldName}" field has been deprecated and will be removed in 8.0.0. This plugin is designed to work with ECS, and expects this field to have a value of `{defaultValue}`. It has a different value configured in Source {configCount, plural, one {Configuration} other {Configurations}}: {configNames}',
-    values: {
-      fieldName,
-      defaultValue,
-      configNames: configNames.join(', '),
-      configCount: configNames.length,
-    },
-  });
-
-const DEFAULT_VALUES = {
-  timestamp: TIMESTAMP_FIELD,
-  tiebreaker: TIEBREAKER_FIELD,
-  container: CONTAINER_FIELD,
-  host: HOST_FIELD,
-  pod: POD_FIELD,
-};
-
-const FIELD_DEPRECATION_FACTORIES: Record<string, (configNames: string[]) => DeprecationsDetails> =
-  {
-    timestamp: (configNames) => ({
-      level: 'critical',
-      title: i18n.translate('xpack.infra.deprecations.timestampFieldTitle', {
-        defaultMessage: 'Source configuration field "timestamp" is deprecated.',
-      }),
-      message: deprecatedFieldMessage(
-        i18n.translate('xpack.infra.deprecations.timestampFieldName', {
-          defaultMessage: 'timestamp',
-        }),
-        DEFAULT_VALUES.timestamp,
-        configNames
-      ),
-      correctiveActions: {
-        manualSteps: [
-          i18n.translate('xpack.infra.deprecations.timestampAdjustIndexing', {
-            defaultMessage: 'Adjust your indexing to use "{field}" as a timestamp.',
-            values: { field: '@timestamp' },
-          }),
-        ],
-      },
-    }),
-    tiebreaker: (configNames) => ({
-      level: 'critical',
-      title: i18n.translate('xpack.infra.deprecations.tiebreakerFieldTitle', {
-        defaultMessage: 'Source configuration field "tiebreaker" is deprecated.',
-      }),
-      message: deprecatedFieldMessage(
-        i18n.translate('xpack.infra.deprecations.tiebreakerFieldName', {
-          defaultMessage: 'tiebreaker',
-        }),
-        DEFAULT_VALUES.tiebreaker,
-        configNames
-      ),
-      correctiveActions: {
-        manualSteps: [
-          i18n.translate('xpack.infra.deprecations.tiebreakerAdjustIndexing', {
-            defaultMessage: 'Adjust your indexing to use "{field}" as a tiebreaker.',
-            values: { field: '_doc' },
-          }),
-        ],
-      },
-    }),
-    host: (configNames) => ({
-      level: 'critical',
-      title: i18n.translate('xpack.infra.deprecations.hostnameFieldTitle', {
-        defaultMessage: 'Source configuration field "host name" is deprecated.',
-      }),
-      message: deprecatedFieldMessage(
-        i18n.translate('xpack.infra.deprecations.hostnameFieldName', {
-          defaultMessage: 'host name',
-        }),
-        DEFAULT_VALUES.host,
-        configNames
-      ),
-      correctiveActions: {
-        manualSteps: [
-          i18n.translate('xpack.infra.deprecations.hostAdjustIndexing', {
-            defaultMessage: 'Adjust your indexing to identify hosts using "{field}"',
-            values: { field: 'host.name' },
-          }),
-        ],
-      },
-    }),
-    pod: (configNames) => ({
-      level: 'critical',
-      title: i18n.translate('xpack.infra.deprecations.podIdFieldTitle', {
-        defaultMessage: 'Source configuration field "pod ID" is deprecated.',
-      }),
-      message: deprecatedFieldMessage(
-        i18n.translate('xpack.infra.deprecations.podIdFieldName', { defaultMessage: 'pod ID' }),
-        DEFAULT_VALUES.pod,
-        configNames
-      ),
-      correctiveActions: {
-        manualSteps: [
-          i18n.translate('xpack.infra.deprecations.podAdjustIndexing', {
-            defaultMessage: 'Adjust your indexing to identify Kubernetes pods using "{field}"',
-            values: { field: 'kubernetes.pod.uid' },
-          }),
-        ],
-      },
-    }),
-    container: (configNames) => ({
-      level: 'critical',
-      title: i18n.translate('xpack.infra.deprecations.containerIdFieldTitle', {
-        defaultMessage: 'Source configuration field "container ID" is deprecated.',
-      }),
-      message: deprecatedFieldMessage(
-        i18n.translate('xpack.infra.deprecations.containerIdFieldName', {
-          defaultMessage: 'container ID',
-        }),
-        DEFAULT_VALUES.container,
-        configNames
-      ),
-      correctiveActions: {
-        manualSteps: [
-          i18n.translate('xpack.infra.deprecations.containerAdjustIndexing', {
-            defaultMessage: 'Adjust your indexing to identify Docker containers using "{field}"',
-            values: { field: 'container.id' },
-          }),
-        ],
-      },
-    }),
-  };
-
-export const configDeprecations: ConfigDeprecationProvider = ({ deprecate }) => [
-  ...Object.keys(FIELD_DEPRECATION_FACTORIES).map(
-    (key): ConfigDeprecation =>
-      (completeConfig, rootPath, addDeprecation) => {
-        const configuredValue = get(completeConfig, `xpack.infra.sources.default.fields.${key}`);
-        if (typeof configuredValue === 'undefined') {
-          return completeConfig;
-        }
-        addDeprecation({
-          title: i18n.translate('xpack.infra.deprecations.deprecatedFieldConfigTitle', {
-            defaultMessage: '"{fieldKey}" is deprecated.',
-            values: {
-              fieldKey: key,
-            },
-          }),
-          message: i18n.translate('xpack.infra.deprecations.deprecatedFieldConfigDescription', {
-            defaultMessage:
-              'Configuring "xpack.infra.sources.default.fields.{fieldKey}" has been deprecated and will be removed in 8.0.0.',
-            values: {
-              fieldKey: key,
-            },
-          }),
-          level: 'warning',
-          correctiveActions: {
-            manualSteps: [
-              i18n.translate('xpack.infra.deprecations.removeConfigField', {
-                defaultMessage:
-                  'Remove "xpack.infra.sources.default.fields.{fieldKey}" from your Kibana configuration.',
-                values: { fieldKey: key },
-              }),
-            ],
-          },
-        } as Parameters<typeof addDeprecation>[0]);
-
-        return completeConfig;
-      }
-  ),
-];
-
-export const getInfraDeprecationsFactory =
-  (sources: InfraSources) =>
-  async ({ savedObjectsClient }: GetDeprecationsContext) => {
-    const deprecatedFieldsToSourceConfigMap: Map<string, string[]> = new Map();
-    const sourceConfigurations = await sources.getAllSourceConfigurations(savedObjectsClient);
-
-    for (const { configuration } of sourceConfigurations) {
-      const { name, fields } = configuration;
-      for (const [key, defaultValue] of Object.entries(DEFAULT_VALUES)) {
-        const configuredValue = Reflect.get(fields, key);
-        if (configuredValue !== undefined && configuredValue !== defaultValue) {
-          const affectedConfigNames = deprecatedFieldsToSourceConfigMap.get(key) ?? [];
-          affectedConfigNames.push(name);
-          deprecatedFieldsToSourceConfigMap.set(key, affectedConfigNames);
-        }
-      }
-    }
-
-    const deprecations: DeprecationsDetails[] = [];
-    if (deprecatedFieldsToSourceConfigMap.size > 0) {
-      for (const [fieldName, affectedConfigNames] of deprecatedFieldsToSourceConfigMap.entries()) {
-        const deprecationFactory = Reflect.get(FIELD_DEPRECATION_FACTORIES, fieldName);
-        deprecations.push(deprecationFactory(affectedConfigNames));
-      }
-    }
-
-    return deprecations;
-  };
diff --git a/x-pack/plugins/infra/server/lib/sources/migrations/create_test_source_configuration.ts b/x-pack/plugins/infra/server/lib/sources/migrations/create_test_source_configuration.ts
index bdef0bf02390a..307287dfc4c62 100644
--- a/x-pack/plugins/infra/server/lib/sources/migrations/create_test_source_configuration.ts
+++ b/x-pack/plugins/infra/server/lib/sources/migrations/create_test_source_configuration.ts
@@ -16,9 +16,6 @@ export const createTestSourceConfiguration = (
   attributes: {
     name: 'TEST CONFIGURATION',
     description: '',
-    fields: {
-      message: ['TEST MESSAGE FIELD'],
-    },
     inventoryDefaultView: '0',
     metricsExplorerDefaultView: '0',
     logColumns: [
diff --git a/x-pack/plugins/infra/server/lib/sources/mocks.ts b/x-pack/plugins/infra/server/lib/sources/mocks.ts
index 5184d4a4ef334..14d1134d060a4 100644
--- a/x-pack/plugins/infra/server/lib/sources/mocks.ts
+++ b/x-pack/plugins/infra/server/lib/sources/mocks.ts
@@ -15,7 +15,4 @@ export const createInfraSourcesMock = (): jest.Mocked<IInfraSources> => ({
   createSourceConfiguration: jest.fn(),
   deleteSourceConfiguration: jest.fn(),
   updateSourceConfiguration: jest.fn(),
-  getAllSourceConfigurations: jest.fn(),
-  getInternalSourceConfiguration: jest.fn(),
-  defineInternalSourceConfiguration: jest.fn(),
 });
diff --git a/x-pack/plugins/infra/server/lib/sources/saved_object_references.test.ts b/x-pack/plugins/infra/server/lib/sources/saved_object_references.test.ts
index fb550390e25be..4ca2f51cf9385 100644
--- a/x-pack/plugins/infra/server/lib/sources/saved_object_references.test.ts
+++ b/x-pack/plugins/infra/server/lib/sources/saved_object_references.test.ts
@@ -100,9 +100,6 @@ describe('resolveSavedObjectReferences function', () => {
 const sourceConfigurationWithIndexPatternReference: InfraSourceConfiguration = {
   name: 'NAME',
   description: 'DESCRIPTION',
-  fields: {
-    message: ['MESSAGE_FIELD'],
-  },
   logColumns: [],
   logIndices: {
     type: 'index_pattern',
diff --git a/x-pack/plugins/infra/server/lib/sources/sources.test.ts b/x-pack/plugins/infra/server/lib/sources/sources.test.ts
index 5888ea3a6969e..27f232eed3c99 100644
--- a/x-pack/plugins/infra/server/lib/sources/sources.test.ts
+++ b/x-pack/plugins/infra/server/lib/sources/sources.test.ts
@@ -15,7 +15,7 @@ describe('the InfraSources lib', () => {
   describe('getSourceConfiguration method', () => {
     test('returns a source configuration if it exists', async () => {
       const sourcesLib = new InfraSources({
-        config: createMockStaticConfiguration({}),
+        config: createMockStaticConfiguration(),
         metricsClient: createMockMetricsDataClient('METRIC_ALIAS'),
       });
 
@@ -50,42 +50,9 @@ describe('the InfraSources lib', () => {
       });
     });
 
-    test('adds missing attributes from the static configuration to a source configuration', async () => {
-      const sourcesLib = new InfraSources({
-        config: createMockStaticConfiguration({
-          default: {
-            metricAlias: 'METRIC_ALIAS',
-            logIndices: { type: 'index_pattern', indexPatternId: 'LOG_ALIAS' },
-          },
-        }),
-        metricsClient: createMockMetricsDataClient('METRIC_ALIAS'),
-      });
-
-      const request: any = createRequestContext({
-        id: 'TEST_ID',
-        version: 'foo',
-        type: infraSourceConfigurationSavedObjectName,
-        updated_at: '2000-01-01T00:00:00.000Z',
-        attributes: {},
-        references: [],
-      });
-
-      expect(
-        await sourcesLib.getSourceConfiguration(request.core.savedObjects.client, 'TEST_ID')
-      ).toMatchObject({
-        id: 'TEST_ID',
-        version: 'foo',
-        updatedAt: 946684800000,
-        configuration: {
-          metricAlias: 'METRIC_ALIAS',
-          logIndices: { type: 'index_pattern', indexPatternId: 'LOG_ALIAS' },
-        },
-      });
-    });
-
     test('adds missing attributes from the default configuration to a source configuration', async () => {
       const sourcesLib = new InfraSources({
-        config: createMockStaticConfiguration({}),
+        config: createMockStaticConfiguration(),
         metricsClient: createMockMetricsDataClient(),
       });
 
@@ -113,7 +80,7 @@ describe('the InfraSources lib', () => {
   });
 });
 
-const createMockStaticConfiguration = (sources: any): InfraConfig => ({
+const createMockStaticConfiguration = (): InfraConfig => ({
   alerting: {
     inventory_threshold: {
       group_by_page_size: 10000,
@@ -135,7 +102,6 @@ const createMockStaticConfiguration = (sources: any): InfraConfig => ({
     logThresholdAlertRuleEnabled: true,
     alertsAndRulesDropdownEnabled: true,
   },
-  sources,
   enabled: true,
 });
 
diff --git a/x-pack/plugins/infra/server/lib/sources/sources.ts b/x-pack/plugins/infra/server/lib/sources/sources.ts
index 64f7900d57279..e89157d40bc87 100644
--- a/x-pack/plugins/infra/server/lib/sources/sources.ts
+++ b/x-pack/plugins/infra/server/lib/sources/sources.ts
@@ -6,7 +6,7 @@
  */
 
 import { fold, map } from 'fp-ts/lib/Either';
-import { constant, identity } from 'fp-ts/lib/function';
+import { identity } from 'fp-ts/lib/function';
 import { pipe } from 'fp-ts/lib/pipeable';
 import { failure } from 'io-ts/lib/PathReporter';
 import { inRange } from 'lodash';
@@ -21,13 +21,11 @@ import {
   InfraSource,
   InfraSourceConfiguration,
   InfraStaticSourceConfiguration,
-  SourceConfigurationConfigFileProperties,
-  sourceConfigurationConfigFilePropertiesRT,
 } from '../../../common/source_configuration/source_configuration';
 import { SourceConfigurationSavedObjectRT } from '.';
 import { InfraConfig } from '../..';
 import { defaultSourceConfiguration } from './defaults';
-import { AnomalyThresholdRangeError, NotFoundError } from './errors';
+import { AnomalyThresholdRangeError } from './errors';
 import {
   extractSavedObjectReferences,
   resolveSavedObjectReferences,
@@ -43,7 +41,6 @@ interface Libs {
 export type IInfraSources = Pick<InfraSources, keyof InfraSources>;
 
 export class InfraSources {
-  private internalSourceConfigurations: Map<string, InfraStaticSourceConfiguration> = new Map();
   private readonly libs: Libs;
 
   constructor(libs: Libs) {
@@ -54,29 +51,14 @@ export class InfraSources {
     savedObjectsClient: SavedObjectsClientContract,
     sourceId: string
   ): Promise<InfraSource> {
-    const staticDefaultSourceConfiguration = await this.getStaticDefaultSourceConfiguration();
-    const savedSourceConfiguration = await this.getInternalSourceConfiguration(sourceId)
-      .then((internalSourceConfiguration) => ({
-        id: sourceId,
-        version: undefined,
-        updatedAt: undefined,
-        origin: 'internal' as 'internal',
-        configuration: mergeSourceConfiguration(
-          staticDefaultSourceConfiguration,
-          internalSourceConfiguration
-        ),
+    const savedSourceConfiguration = await this.getSavedSourceConfiguration(
+      savedObjectsClient,
+      sourceId
+    )
+      .then((result) => ({
+        ...result,
+        configuration: mergeSourceConfiguration(defaultSourceConfiguration, result.configuration),
       }))
-      .catch((err) =>
-        err instanceof NotFoundError
-          ? this.getSavedSourceConfiguration(savedObjectsClient, sourceId).then((result) => ({
-              ...result,
-              configuration: mergeSourceConfiguration(
-                staticDefaultSourceConfiguration,
-                result.configuration
-              ),
-            }))
-          : Promise.reject(err)
-      )
       .catch((err) =>
         SavedObjectsErrorHelpers.isNotFoundError(err)
           ? Promise.resolve({
@@ -84,7 +66,7 @@ export class InfraSources {
               version: undefined,
               updatedAt: undefined,
               origin: 'fallback' as 'fallback',
-              configuration: staticDefaultSourceConfiguration,
+              configuration: defaultSourceConfiguration,
             })
           : Promise.reject(err)
       );
@@ -107,36 +89,16 @@ export class InfraSources {
     return sourceConfiguration;
   }
 
-  public async getAllSourceConfigurations(savedObjectsClient: SavedObjectsClientContract) {
-    const staticDefaultSourceConfiguration = await this.getStaticDefaultSourceConfiguration();
-
-    const savedSourceConfigurations = await this.getAllSavedSourceConfigurations(
-      savedObjectsClient
-    );
-
-    return savedSourceConfigurations.map((savedSourceConfiguration) => ({
-      ...savedSourceConfiguration,
-      configuration: mergeSourceConfiguration(
-        staticDefaultSourceConfiguration,
-        savedSourceConfiguration.configuration
-      ),
-    }));
-  }
-
   public async createSourceConfiguration(
     savedObjectsClient: SavedObjectsClientContract,
     sourceId: string,
     source: InfraSavedSourceConfiguration
   ) {
-    const staticDefaultSourceConfiguration = await this.getStaticDefaultSourceConfiguration();
     const { anomalyThreshold } = source;
     if (anomalyThreshold && !inRange(anomalyThreshold, 0, 101))
       throw new AnomalyThresholdRangeError('Anomaly threshold must be 1-100');
 
-    const newSourceConfiguration = mergeSourceConfiguration(
-      staticDefaultSourceConfiguration,
-      source
-    );
+    const newSourceConfiguration = mergeSourceConfiguration(defaultSourceConfiguration, source);
     const { attributes, references } = extractSavedObjectReferences(newSourceConfiguration);
 
     const createdSourceConfiguration = convertSavedObjectToSavedSourceConfiguration(
@@ -154,7 +116,7 @@ export class InfraSources {
     return {
       ...createdSourceConfiguration,
       configuration: mergeSourceConfiguration(
-        staticDefaultSourceConfiguration,
+        defaultSourceConfiguration,
         createdSourceConfiguration.configuration
       ),
     };
@@ -172,7 +134,6 @@ export class InfraSources {
     sourceId: string,
     sourceProperties: InfraSavedSourceConfiguration
   ) {
-    const staticDefaultSourceConfiguration = await this.getStaticDefaultSourceConfiguration();
     const { anomalyThreshold } = sourceProperties;
 
     if (anomalyThreshold && !inRange(anomalyThreshold, 0, 101))
@@ -210,42 +171,12 @@ export class InfraSources {
     return {
       ...updatedSourceConfiguration,
       configuration: mergeSourceConfiguration(
-        staticDefaultSourceConfiguration,
+        defaultSourceConfiguration,
         updatedSourceConfiguration.configuration
       ),
     };
   }
 
-  public async defineInternalSourceConfiguration(
-    sourceId: string,
-    sourceProperties: InfraStaticSourceConfiguration
-  ) {
-    this.internalSourceConfigurations.set(sourceId, sourceProperties);
-  }
-
-  public async getInternalSourceConfiguration(sourceId: string) {
-    const internalSourceConfiguration = this.internalSourceConfigurations.get(sourceId);
-
-    if (!internalSourceConfiguration) {
-      throw new NotFoundError(
-        `Failed to load internal source configuration: no configuration "${sourceId}" found.`
-      );
-    }
-
-    return internalSourceConfiguration;
-  }
-
-  private async getStaticDefaultSourceConfiguration() {
-    const staticSourceConfiguration: SourceConfigurationConfigFileProperties['sources']['default'] =
-      pipe(
-        sourceConfigurationConfigFilePropertiesRT.decode(this.libs.config),
-        map(({ sources: { default: defaultConfiguration } }) => defaultConfiguration),
-        fold(constant({}), identity)
-      );
-
-    return mergeSourceConfiguration(defaultSourceConfiguration, staticSourceConfiguration);
-  }
-
   private async getSavedSourceConfiguration(
     savedObjectsClient: SavedObjectsClientContract,
     sourceId: string
@@ -257,14 +188,6 @@ export class InfraSources {
 
     return convertSavedObjectToSavedSourceConfiguration(savedObject);
   }
-
-  private async getAllSavedSourceConfigurations(savedObjectsClient: SavedObjectsClientContract) {
-    const savedObjects = await savedObjectsClient.find({
-      type: infraSourceConfigurationSavedObjectName,
-    });
-
-    return savedObjects.saved_objects.map(convertSavedObjectToSavedSourceConfiguration);
-  }
 }
 
 export const mergeSourceConfiguration = (
@@ -275,10 +198,6 @@ export const mergeSourceConfiguration = (
     (previousSourceConfiguration, currentSourceConfiguration) => ({
       ...previousSourceConfiguration,
       ...currentSourceConfiguration,
-      fields: {
-        ...previousSourceConfiguration.fields,
-        ...currentSourceConfiguration.fields,
-      },
     }),
     first
   );
diff --git a/x-pack/plugins/infra/server/lib/sources/types.ts b/x-pack/plugins/infra/server/lib/sources/types.ts
index 7c2448dc48018..22cc5108c35c9 100644
--- a/x-pack/plugins/infra/server/lib/sources/types.ts
+++ b/x-pack/plugins/infra/server/lib/sources/types.ts
@@ -73,7 +73,6 @@ export const SourceConfigurationSavedObjectAttributesRT = rt.type({
   logIndices: logIndexSavedObjectReferenceRT,
   inventoryDefaultView: rt.string,
   metricsExplorerDefaultView: rt.string,
-  fields: rt.record(rt.string, rt.unknown),
   logColumns: rt.array(SourceConfigurationSavedObjectColumnRT),
   anomalyThreshold: rt.number,
 });
diff --git a/x-pack/plugins/infra/server/mocks.ts b/x-pack/plugins/infra/server/mocks.ts
index 51845ffed003f..4749ba6e1a3b6 100644
--- a/x-pack/plugins/infra/server/mocks.ts
+++ b/x-pack/plugins/infra/server/mocks.ts
@@ -17,7 +17,6 @@ import { InfraPluginSetup, InfraPluginStart } from './types';
 
 const createInfraSetupMock = () => {
   const infraSetupMock: jest.Mocked<InfraPluginSetup> = {
-    defineInternalSourceConfiguration: jest.fn(),
     inventoryViews: createInventoryViewsServiceSetupMock(),
     metricsExplorerViews: createMetricsExplorerViewsServiceSetupMock(),
   };
diff --git a/x-pack/plugins/infra/server/plugin.ts b/x-pack/plugins/infra/server/plugin.ts
index 6aaef8da00bce..6a2734b399199 100644
--- a/x-pack/plugins/infra/server/plugin.ts
+++ b/x-pack/plugins/infra/server/plugin.ts
@@ -21,7 +21,6 @@ import { DEFAULT_SPACE_ID } from '@kbn/spaces-plugin/common';
 import { GetMetricIndicesOptions } from '@kbn/metrics-data-access-plugin/server';
 import { LOGS_FEATURE_ID, METRICS_FEATURE_ID } from '../common/constants';
 import { publicConfigKeys } from '../common/plugin_config_types';
-import { configDeprecations, getInfraDeprecationsFactory } from './deprecations';
 import { LOGS_FEATURE, METRICS_FEATURE } from './features';
 import { initInfraServer } from './infra_server';
 import { FrameworkFieldsAdapter } from './lib/adapters/fields/framework_fields_adapter';
@@ -115,7 +114,6 @@ export const config: PluginConfigDescriptor<InfraConfig> = {
       }),
     }),
   }),
-  deprecations: configDeprecations,
   exposeToBrowser: publicConfigKeys,
 };
 
@@ -275,13 +273,7 @@ export class InfraServerPlugin
     // Telemetry
     UsageCollector.registerUsageCollector(plugins.usageCollection);
 
-    // register deprecated source configuration fields
-    core.deprecations.registerDeprecations({
-      getDeprecations: getInfraDeprecationsFactory(sources),
-    });
-
     return {
-      defineInternalSourceConfiguration: sources.defineInternalSourceConfiguration.bind(sources),
       inventoryViews,
       metricsExplorerViews,
     } as InfraPluginSetup;
diff --git a/x-pack/plugins/infra/server/routes/snapshot/lib/transform_request_to_metrics_api_request.test.ts b/x-pack/plugins/infra/server/routes/snapshot/lib/transform_request_to_metrics_api_request.test.ts
index c019fcbfb909e..cea45fc94bd07 100644
--- a/x-pack/plugins/infra/server/routes/snapshot/lib/transform_request_to_metrics_api_request.test.ts
+++ b/x-pack/plugins/infra/server/routes/snapshot/lib/transform_request_to_metrics_api_request.test.ts
@@ -46,9 +46,6 @@ const source: InfraSource = {
       type: 'index_pattern',
       indexPatternId: 'kibana_index_pattern',
     },
-    fields: {
-      message: ['message', '@message'],
-    },
     inventoryDefaultView: '0',
     metricsExplorerDefaultView: '0',
     logColumns: [
diff --git a/x-pack/plugins/infra/server/services/inventory_views/inventory_views_client.test.ts b/x-pack/plugins/infra/server/services/inventory_views/inventory_views_client.test.ts
index 7ec614dbbfe22..89c5b17d3c402 100644
--- a/x-pack/plugins/infra/server/services/inventory_views/inventory_views_client.test.ts
+++ b/x-pack/plugins/infra/server/services/inventory_views/inventory_views_client.test.ts
@@ -202,9 +202,6 @@ const basicTestSourceConfiguration: InfraSource = {
       indexPatternId: 'INDEX_PATTERN_ID',
     },
     logColumns: [],
-    fields: {
-      message: [],
-    },
     metricAlias: 'METRIC_ALIAS',
     inventoryDefaultView: '0',
     metricsExplorerDefaultView: 'METRICS_EXPLORER_DEFAULT_VIEW',
diff --git a/x-pack/plugins/infra/server/services/metrics_explorer_views/metrics_explorer_views_client.test.ts b/x-pack/plugins/infra/server/services/metrics_explorer_views/metrics_explorer_views_client.test.ts
index 791b7366f086c..6b8de7a724f16 100644
--- a/x-pack/plugins/infra/server/services/metrics_explorer_views/metrics_explorer_views_client.test.ts
+++ b/x-pack/plugins/infra/server/services/metrics_explorer_views/metrics_explorer_views_client.test.ts
@@ -209,9 +209,6 @@ const basicTestSourceConfiguration: InfraSource = {
       indexPatternId: 'INDEX_PATTERN_ID',
     },
     logColumns: [],
-    fields: {
-      message: [],
-    },
     metricAlias: 'METRIC_ALIAS',
     inventoryDefaultView: '0',
     metricsExplorerDefaultView: '0',
diff --git a/x-pack/plugins/infra/server/types.ts b/x-pack/plugins/infra/server/types.ts
index 8fc3576027d64..c7fde8c4c0bd3 100644
--- a/x-pack/plugins/infra/server/types.ts
+++ b/x-pack/plugins/infra/server/types.ts
@@ -8,7 +8,6 @@
 import type { CoreSetup, CustomRequestHandlerContext } from '@kbn/core/server';
 import type { SearchRequestHandlerContext } from '@kbn/data-plugin/server';
 import type { MlPluginSetup } from '@kbn/ml-plugin/server';
-import type { InfraStaticSourceConfiguration } from '../common/source_configuration/source_configuration';
 import { InfraServerPluginStartDeps } from './lib/adapters/framework';
 import { InventoryViewsServiceSetup, InventoryViewsServiceStart } from './services/inventory_views';
 import {
@@ -22,10 +21,6 @@ export type InfraPluginCoreSetup = CoreSetup<InfraServerPluginStartDeps, InfraPl
 export type InfraPluginStartServicesAccessor = InfraPluginCoreSetup['getStartServices'];
 
 export interface InfraPluginSetup {
-  defineInternalSourceConfiguration: (
-    sourceId: string,
-    sourceProperties: InfraStaticSourceConfiguration
-  ) => void;
   inventoryViews: InventoryViewsServiceSetup;
   metricsExplorerViews?: MetricsExplorerViewsServiceSetup;
 }
diff --git a/x-pack/plugins/infra/server/utils/map_source_to_log_view.test.ts b/x-pack/plugins/infra/server/utils/map_source_to_log_view.test.ts
index 38db985a28280..168a208f15e60 100644
--- a/x-pack/plugins/infra/server/utils/map_source_to_log_view.test.ts
+++ b/x-pack/plugins/infra/server/utils/map_source_to_log_view.test.ts
@@ -48,9 +48,6 @@ const basicTestSourceConfiguration: InfraSource = {
       indexPatternId: 'INDEX_PATTERN_ID',
     },
     logColumns: [],
-    fields: {
-      message: [],
-    },
     metricAlias: 'METRIC_ALIAS',
     inventoryDefaultView: 'INVENTORY_DEFAULT_VIEW',
     metricsExplorerDefaultView: 'METRICS_EXPLORER_DEFAULT_VIEW',
diff --git a/x-pack/plugins/translations/translations/fr-FR.json b/x-pack/plugins/translations/translations/fr-FR.json
index 0ad934c20ca2d..079b375a2454e 100644
--- a/x-pack/plugins/translations/translations/fr-FR.json
+++ b/x-pack/plugins/translations/translations/fr-FR.json
@@ -18334,15 +18334,6 @@
     "xpack.infra.analysisSetup.indicesSelectionIndexNotFound": "Aucun index ne correspond au modèle {index}",
     "xpack.infra.analysisSetup.indicesSelectionNoTimestampField": "Il manque un champ {field} obligatoire dans au moins un index correspondant à {index}.",
     "xpack.infra.analysisSetup.indicesSelectionTimestampNotValid": "Au moins un index correspondant à {index} comprend un champ appelé {field} sans le type correct.",
-    "xpack.infra.deprecations.containerAdjustIndexing": "Ajustez votre indexation pour identifier les conteneurs Docker utilisant \"{field}\"",
-    "xpack.infra.deprecations.deprecatedFieldConfigDescription": "La configuration de \"xpack.infra.sources.default.fields.{fieldKey}\" a été déclassée et sera retirée dans la version 8.0.0.",
-    "xpack.infra.deprecations.deprecatedFieldConfigTitle": "\"{fieldKey}\" est déclassé.",
-    "xpack.infra.deprecations.deprecatedFieldDescription": "La configuration du champ \"{fieldName}\" a été déclassée et sera retirée dans la version 8.0.0. Ce plug-in est conçu pour fonctionner avec ECS et attend la valeur \"{defaultValue}\" pour ce champ. Celui-ci présente une valeur différente dans la configuration source {configCount, plural, one {Configuration} many {Configurations} other {Configurations}} : {configNames}",
-    "xpack.infra.deprecations.hostAdjustIndexing": "Ajustez votre indexation pour identifier les hôtes utilisant \"{field}\"",
-    "xpack.infra.deprecations.podAdjustIndexing": "Ajustez votre indexation pour identifier les pods Kubernetes utilisant \"{field}\"",
-    "xpack.infra.deprecations.removeConfigField": "Retirez \"xpack.infra.sources.default.fields.{fieldKey}\" de votre configuration Kibana.",
-    "xpack.infra.deprecations.tiebreakerAdjustIndexing": "Ajustez votre indexation pour utiliser \"{field}\" comme moyen de départager.",
-    "xpack.infra.deprecations.timestampAdjustIndexing": "Ajustez votre indexation pour utiliser \"{field}\" comme horodatage.",
     "xpack.infra.homePage.toolbar.showingLastOneMinuteDataText": "Dernières {duration} de données pour l'heure sélectionnée",
     "xpack.infra.hostsViewPage.errorOnCreateOrLoadDataview": "Une erreur s’est produite lors de la création d’une vue de données : {metricAlias}. Essayez de recharger la page.",
     "xpack.infra.hostsViewPage.kpi.subtitle.average.limit": "Moyenne (de {limit} hôtes)",
@@ -18494,16 +18485,6 @@
     "xpack.infra.chartSection.notEnoughDataPointsToRenderTitle": "Données insuffisantes",
     "xpack.infra.common.tabBetaBadgeLabel": "Bêta",
     "xpack.infra.configureSourceActionLabel": "Modifier la configuration de la source",
-    "xpack.infra.deprecations.containerIdFieldName": "ID de conteneur",
-    "xpack.infra.deprecations.containerIdFieldTitle": "Le champ de configuration source \"ID de conteneur\" est déclassé.",
-    "xpack.infra.deprecations.hostnameFieldName": "nom d'hôte",
-    "xpack.infra.deprecations.hostnameFieldTitle": "Le champ de configuration source \"nom d’hôte\" est déclassé.",
-    "xpack.infra.deprecations.podIdFieldName": "ID de pod",
-    "xpack.infra.deprecations.podIdFieldTitle": "Le champ de configuration source \"ID de pod\" est déclassé.",
-    "xpack.infra.deprecations.tiebreakerFieldName": "Départage",
-    "xpack.infra.deprecations.tiebreakerFieldTitle": "Le champ de configuration source \"départage\" est déclassé.",
-    "xpack.infra.deprecations.timestampFieldName": "timestamp",
-    "xpack.infra.deprecations.timestampFieldTitle": "Le champ de configuration source \"horodatage\" est déclassé.",
     "xpack.infra.durationUnits.days.plural": "jours",
     "xpack.infra.durationUnits.days.singular": "jour",
     "xpack.infra.durationUnits.hours.plural": "heures",
diff --git a/x-pack/plugins/translations/translations/ja-JP.json b/x-pack/plugins/translations/translations/ja-JP.json
index 00107f55b3268..2f7f25303be7f 100644
--- a/x-pack/plugins/translations/translations/ja-JP.json
+++ b/x-pack/plugins/translations/translations/ja-JP.json
@@ -18348,15 +18348,6 @@
     "xpack.infra.analysisSetup.indicesSelectionIndexNotFound": "インデックスがパターン{index}と一致しません",
     "xpack.infra.analysisSetup.indicesSelectionNoTimestampField": "{index}と一致する1つ以上のインデックスに、必須フィールド{field}がありません。",
     "xpack.infra.analysisSetup.indicesSelectionTimestampNotValid": "{index}と一致する1つ以上のインデックスに、正しい型がない{field}フィールドがあります。",
-    "xpack.infra.deprecations.containerAdjustIndexing": "インデックスを調整し、\"{field}\"を使用してDockerコンテナーを特定",
-    "xpack.infra.deprecations.deprecatedFieldConfigDescription": "「xpack.infra.sources.default.fields.{fieldKey}」の構成は廃止予定であり、8.0.0で削除されます。",
-    "xpack.infra.deprecations.deprecatedFieldConfigTitle": "\"{fieldKey}\"は廃止予定です。",
-    "xpack.infra.deprecations.deprecatedFieldDescription": "\"{fieldName}\"フィールドの構成は廃止予定です。8.0.0で削除されます。このプラグインはECSと連動するように設計され、このフィールドには`{defaultValue}`の値が入ることが想定されています。ソース{configCount, plural, other {構成}}で設定されている値が異なります：{configNames}",
-    "xpack.infra.deprecations.hostAdjustIndexing": "インデックスを調整し、\"{field}\"を使用してホストを特定",
-    "xpack.infra.deprecations.podAdjustIndexing": "インデックスを調整し、\"{field}\"を使用してKubernetesポッドを特定",
-    "xpack.infra.deprecations.removeConfigField": "「xpack.infra.sources.default.fields.{fieldKey}」をKibana構成から削除します。",
-    "xpack.infra.deprecations.tiebreakerAdjustIndexing": "インデックスを調整し、\"{field}\"をタイブレーカーとして使用します。",
-    "xpack.infra.deprecations.timestampAdjustIndexing": "インデックスを調整し、\"{field}\"をタイムスタンプとして使用します。",
     "xpack.infra.homePage.toolbar.showingLastOneMinuteDataText": "指定期間のデータの最後の{duration}",
     "xpack.infra.hostsViewPage.errorOnCreateOrLoadDataview": "データビューの作成中にエラーが発生しました：{metricAlias}。ページを再読み込みしてください。",
     "xpack.infra.hostsViewPage.kpi.subtitle.average.limit": "（{limit}ホストの）平均",
@@ -18508,16 +18499,6 @@
     "xpack.infra.chartSection.notEnoughDataPointsToRenderTitle": "データが不十分です",
     "xpack.infra.common.tabBetaBadgeLabel": "ベータ",
     "xpack.infra.configureSourceActionLabel": "ソース構成を変更",
-    "xpack.infra.deprecations.containerIdFieldName": "コンテナーID",
-    "xpack.infra.deprecations.containerIdFieldTitle": "ソース構成フィールド［コンテナーID］は廃止予定です。",
-    "xpack.infra.deprecations.hostnameFieldName": "ホスト名",
-    "xpack.infra.deprecations.hostnameFieldTitle": "ソース構成フィールド［ホスト名］は廃止予定です。",
-    "xpack.infra.deprecations.podIdFieldName": "ポッド ID",
-    "xpack.infra.deprecations.podIdFieldTitle": "ソース構成フィールド［ポッドID］は廃止予定です。",
-    "xpack.infra.deprecations.tiebreakerFieldName": "タイブレーカー",
-    "xpack.infra.deprecations.tiebreakerFieldTitle": "ソース構成フィールド［タイブレーカー］は廃止予定です。",
-    "xpack.infra.deprecations.timestampFieldName": "タイムスタンプ",
-    "xpack.infra.deprecations.timestampFieldTitle": "ソース構成フィールド［タイムスタンプ］は廃止予定です。",
     "xpack.infra.durationUnits.days.plural": "日",
     "xpack.infra.durationUnits.days.singular": "日",
     "xpack.infra.durationUnits.hours.plural": "時間",
diff --git a/x-pack/plugins/translations/translations/zh-CN.json b/x-pack/plugins/translations/translations/zh-CN.json
index 4a70556a8a4d1..b6a661dc22716 100644
--- a/x-pack/plugins/translations/translations/zh-CN.json
+++ b/x-pack/plugins/translations/translations/zh-CN.json
@@ -18348,15 +18348,6 @@
     "xpack.infra.analysisSetup.indicesSelectionIndexNotFound": "没有索引匹配模式 {index}",
     "xpack.infra.analysisSetup.indicesSelectionNoTimestampField": "匹配 {index} 的索引至少有一个缺少必需字段 {field}。",
     "xpack.infra.analysisSetup.indicesSelectionTimestampNotValid": "匹配 {index} 的索引至少有一个具有称作 {field} 且类型不正确的字段。",
-    "xpack.infra.deprecations.containerAdjustIndexing": "调整索引以使用“{field}”标识 Docker 容器",
-    "xpack.infra.deprecations.deprecatedFieldConfigDescription": "配置“xpack.infra.sources.default.fields.{fieldKey}”已过时，将在 8.0.0 中移除。",
-    "xpack.infra.deprecations.deprecatedFieldConfigTitle": "“{fieldKey}”已过时。",
-    "xpack.infra.deprecations.deprecatedFieldDescription": "配置“{fieldName}”字段已过时，将在 8.0.0 中移除。此插件专用于 ECS，预计该字段的值为 `{defaultValue}`。其在以下源{configCount, plural, other {配置}}中配置了不同的值：{configNames}",
-    "xpack.infra.deprecations.hostAdjustIndexing": "调整索引以使用“{field}”标识主机",
-    "xpack.infra.deprecations.podAdjustIndexing": "调整索引以使用“{field}”标识 Kubernetes pod",
-    "xpack.infra.deprecations.removeConfigField": "从 Kibana 配置中移除“xpack.infra.sources.default.fields.{fieldKey}”。",
-    "xpack.infra.deprecations.tiebreakerAdjustIndexing": "调整索引以将“{field}”用作决胜属性。",
-    "xpack.infra.deprecations.timestampAdjustIndexing": "调整索引以将“{field}”用作时间戳。",
     "xpack.infra.homePage.toolbar.showingLastOneMinuteDataText": "选定时间过去 {duration}的数据",
     "xpack.infra.hostsViewPage.errorOnCreateOrLoadDataview": "尝试创建以下数据视图时出错：{metricAlias}。尝试重新加载该页面。",
     "xpack.infra.hostsViewPage.kpi.subtitle.average.limit": "平均值（属于 {limit} 台主机）",
@@ -18508,16 +18499,6 @@
     "xpack.infra.chartSection.notEnoughDataPointsToRenderTitle": "没有足够的数据",
     "xpack.infra.common.tabBetaBadgeLabel": "公测版",
     "xpack.infra.configureSourceActionLabel": "更改源配置",
-    "xpack.infra.deprecations.containerIdFieldName": "容器 ID",
-    "xpack.infra.deprecations.containerIdFieldTitle": "源配置字段“容器 ID”已过时。",
-    "xpack.infra.deprecations.hostnameFieldName": "主机名",
-    "xpack.infra.deprecations.hostnameFieldTitle": "源配置字段“主机名”已过时。",
-    "xpack.infra.deprecations.podIdFieldName": "Pod ID",
-    "xpack.infra.deprecations.podIdFieldTitle": "源配置字段“Pod ID”已过时。",
-    "xpack.infra.deprecations.tiebreakerFieldName": "决胜属性",
-    "xpack.infra.deprecations.tiebreakerFieldTitle": "源配置字段“决胜属性”已过时。",
-    "xpack.infra.deprecations.timestampFieldName": "时间戳",
-    "xpack.infra.deprecations.timestampFieldTitle": "源配置字段“时间戳”已过时。",
     "xpack.infra.durationUnits.days.plural": "天",
     "xpack.infra.durationUnits.days.singular": "天",
     "xpack.infra.durationUnits.hours.plural": "小时",
diff --git a/x-pack/test/api_integration/apis/metrics_ui/inventory_threshold_alert.ts b/x-pack/test/api_integration/apis/metrics_ui/inventory_threshold_alert.ts
index 692672b29c09c..f76dd0e63fd87 100644
--- a/x-pack/test/api_integration/apis/metrics_ui/inventory_threshold_alert.ts
+++ b/x-pack/test/api_integration/apis/metrics_ui/inventory_threshold_alert.ts
@@ -43,9 +43,6 @@ export default function ({ getService }: FtrProviderContext) {
       inventoryDefaultView: 'default',
       metricsExplorerDefaultView: 'default',
       anomalyThreshold: 70,
-      fields: {
-        message: ['message'],
-      },
       logColumns: [
         {
           timestampColumn: {
diff --git a/x-pack/test/api_integration/apis/metrics_ui/metric_threshold_alert.ts b/x-pack/test/api_integration/apis/metrics_ui/metric_threshold_alert.ts
index fc91d64e534bc..18d46a45ded9e 100644
--- a/x-pack/test/api_integration/apis/metrics_ui/metric_threshold_alert.ts
+++ b/x-pack/test/api_integration/apis/metrics_ui/metric_threshold_alert.ts
@@ -56,9 +56,6 @@ export default function ({ getService }: FtrProviderContext) {
     inventoryDefaultView: 'default',
     metricsExplorerDefaultView: 'default',
     anomalyThreshold: 70,
-    fields: {
-      message: ['message'],
-    },
     logColumns: [
       {
         timestampColumn: {