Update OpenAPI Description (#55029)

Co-authored-by: Fernando <108433049+fgalind0@users.noreply.github.com>
Co-authored-by: Ben Ahmady <32935794+subatoi@users.noreply.github.com>

content/rest/copilot/copilot-metrics.md

@@ -9,6 +9,8 @@ topics:
   - API
 autogenerated: rest
 allowTitleToDifferFromFilename: true
+redirect_from:
+  - /rest/copilot/copilot-usage
 ---
 
 You can use these endpoints to get a breakdown of aggregated metrics for various {% data variables.product.prodname_copilot %} features. The API includes:
@@ -18,8 +20,6 @@ You can use these endpoints to get a breakdown of aggregated metrics for various
 * Breakdowns by language and IDE
 * The option to view metrics for an enterprise, organization, or team
 
-If you currently use the [AUTOTITLE](/rest/copilot/copilot-usage), we recommend migrating to these endpoints as soon as possible.
-
 For help getting started, see [AUTOTITLE](/copilot/managing-copilot/managing-github-copilot-in-your-organization/reviewing-activity-related-to-github-copilot-in-your-organization/analyzing-usage-over-time-with-the-copilot-metrics-api).
 
 {% data reusables.copilot.metrics-api-ghecom %}

content/rest/copilot/copilot-usage.md

@@ -1,17 +0,0 @@
----
-title: REST API endpoints for GitHub Copilot usage metrics
-shortTitle: Copilot usage
-intro: 'Use the REST API to access {% data variables.product.prodname_copilot_short %} usage metrics for an enterprise, an organization, or a team.'
-redirect_from:
-  - /early-access/copilot/copilot-usage-api
-versions: # DO NOT MANUALLY EDIT. CHANGES WILL BE OVERWRITTEN BY A 🤖
-  fpt: '*'
-  ghec: '*'
-topics:
-  - API
-autogenerated: rest
-allowTitleToDifferFromFilename: true
----
-
->[!WARNING] These endpoints are retired. Use the [AUTOTITLE](/rest/copilot/copilot-metrics) endpoints instead.
-<!-- Content after this section is automatically generated -->

content/rest/copilot/index.md

@@ -11,7 +11,6 @@ autogenerated: rest
 allowTitleToDifferFromFilename: true
 children:
   - /copilot-metrics
-  - /copilot-usage
   - /copilot-user-management
 versions:
   fpt: '*'