Exclude resource/sdk.md changes from this PR. It will be in a separat…

…e PR.

CHANGELOG.md

@@ -53,10 +53,6 @@ release.
 
 - Clarify "key/value pair list" vs "map" in Log Data Model. ([#1604](https://github.com/open-telemetry/opentelemetry-specification/pull/1604))
 
-### Resource
-
-- Add schema_url support to `Resource`. ([#1666](https://github.com/open-telemetry/opentelemetry-specification/pull/1666))
-
 ### Semantic Conventions
 
 - Fix the inconsistent formatting of semantic convention enums. ([#1598](https://github.com/open-telemetry/opentelemetry-specification/pull/1598/))

specification/resource/sdk.md

@@ -56,10 +56,6 @@ object. A factory method is recommended to enable support for cached objects.
 Required parameters:
 
 - [`Attributes`](../common/common.md#attributes)
-- [since 1.4.0] `schema_url` (optional): Specifies the Schema URL that should be
-  recorded in the emitted resource. If the `schema_url` parameter is unspecified
-  then the emitted resource will have the Schema URL that matches the
-  specification version that the SDK implements.
 
 ### Merge
 
@@ -74,8 +70,6 @@ The resulting resource MUST have all attributes that are on any of the two input
 If a key exists on both the old and updating resource, the value of the updating
 resource MUST be picked (even if the updated value is empty).
 
-The resulting resource will have the `schema_url` of the updating resource.
-
 Required parameters:
 
 - the old resource