chore(superset 2.0): remove front-end deprecated code

RESOURCES/FEATURE_FLAGS.md

@@ -41,7 +41,6 @@ These features are **finished** but currently being tested. They are usable, but
 - DYNAMIC_PLUGINS: [(docs)](https://superset.apache.org/docs/installation/running-on-kubernetes)
 - DASHBOARD_NATIVE_FILTERS
 - GLOBAL_ASYNC_QUERIES [(docs)](https://github.com/apache/superset/blob/master/CONTRIBUTING.md#async-chart-queries)
-- OMNIBAR
 - VERSIONED_EXPORT
 - ENABLE_JAVASCRIPT_CONTROLS
 

superset-frontend/package.json

@@ -149,7 +149,6 @@
     "moment-timezone": "^0.5.33",
     "mousetrap": "^1.6.1",
     "mustache": "^2.2.1",
-    "omnibar": "^2.1.1",
     "polished": "^3.7.2",
     "prop-types": "^15.7.2",
     "query-string": "^6.13.7",

superset-frontend/packages/superset-ui-core/src/time-format/TimeFormatterRegistrySingleton.ts

@@ -75,7 +75,7 @@ export function getTimeFormatter(
 
 /**
  * Syntactic sugar for backward compatibility
- * TODO: Deprecate this in the next breaking change.
+ * TODO: will be deprecated in a future version
  * @param granularity
  */
 export function getTimeFormatterForGranularity(granularity?: TimeGranularity) {

superset-frontend/packages/superset-ui-core/src/utils/featureFlags.ts

@@ -21,7 +21,6 @@
 export enum FeatureFlag {
   ALLOW_DASHBOARD_DOMAIN_SHARDING = 'ALLOW_DASHBOARD_DOMAIN_SHARDING',
   ALERT_REPORTS = 'ALERT_REPORTS',
-  OMNIBAR = 'OMNIBAR',
   CLIENT_CACHE = 'CLIENT_CACHE',
   DYNAMIC_PLUGINS = 'DYNAMIC_PLUGINS',
   SCHEDULED_QUERIES = 'SCHEDULED_QUERIES',