Copilot explain error ga (#53945)

Co-authored-by: Siara <[email protected]>

Author: salilsub

content/copilot/using-github-copilot/asking-github-copilot-questions-in-github.md

@@ -370,8 +370,6 @@ You can ask {% data variables.product.prodname_copilot_short %} to summarize a p
 
 ### Ask why a workflow has failed
 
-> [!NOTE]This feature is currently in {% data variables.release-phases.public_preview %} and subject to change.
-
 1. On {% data variables.product.github %}, navigate to a pull request in a repository.
 1. Scroll to the bottom of the page, then, next to one of the failing checks, click **Details**.
 

data/reusables/copilot/policies-for-dotcom.md

@@ -2,4 +2,3 @@
 * **Opt in to preview features:** If enabled, users can test new {% data variables.product.prodname_copilot_short %} features that are not yet generally available. Be aware that previews of features may have flaws, and the features may be changed or discontinued at any time. Current previews of {% data variables.product.prodname_copilot_short %} features include:
 
   * {% data variables.product.prodname_copilot_autocomplete_pr %}. See [AUTOTITLE](/copilot/using-github-copilot/using-copilot-text-completion).
-  * Asking {% data variables.product.prodname_copilot_short %} why a workflow has failed. See [AUTOTITLE](/copilot/using-github-copilot/asking-github-copilot-questions-in-githubcom#ask-why-a-workflow-has-failed).