Revert "Create a Home page group for Copilot" (#52772)

Author: felicitymay

content/index.md

@@ -100,14 +100,7 @@ childGroups:
       - repositories
       - pull-requests
       - discussions
-  - name: GitHub Copilot
-    octicon: CopilotIcon
-    children:
       - copilot
-      - copilot/using-github-copilot/getting-code-suggestions-in-your-ide-with-github-copilot
-      - copilot/using-github-copilot/prompt-engineering-for-github-copilot
-      - copilot/using-github-copilot/asking-github-copilot-questions-in-githubcom
-      - copilot/using-github-copilot/example-use-cases/refactoring-code-with-github-copilot
   - name: CI/CD and DevOps
     octicon: GearIcon
     children:
@@ -142,7 +135,6 @@ childGroups:
       - rest
       - graphql
       - webhooks
-      - copilot/building-copilot-extensions
       - github-models
   - name: Enterprise and Teams
     octicon: OrganizationIcon