Revert "Add auto-merge step for PRs in collections workflow"

This reverts commit 5bdeaa0.

The auto merge is not permitted by org level rules

Author: ahpook

.github/workflows/collections-renames.yml

@@ -37,11 +37,3 @@ jobs:
           committer: "github-actions[bot] <actions@github.com>"
           branch: "update-collections-${PR_ID}"
           title: "✨ Autofixing renamed/removed collection items ✨"
-
-      - name: Auto-merge PR
-        if: steps.cpr.outputs.pull-request-number
-        run: |
-          gh pr review --approve "${{ steps.cpr.outputs.pull-request-url }}"
-          gh pr merge --auto "${{ steps.cpr.outputs.pull-request-url }}"
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}