Remove labeler action (#2054)

.github/workflows/pr-labeler.yml

@@ -1,22 +0,0 @@
----
-name: "Pull Request Labeler"
-on:
-  pull_request:
-    types:
-      - opened
-
-jobs:
-  # Applies the community-pr label to any PRs from a forked repo, which is used as a proxy for a community PR
-  community-pr:
-    name: 'Label community PRs'
-    permissions:
-      contents: read
-      pull-requests: write
-    runs-on: ubuntu-20.04
-    steps:
-      - if: ${{ github.event.pull_request.head.repo.fork }}
-        name: 'Apply label'
-        uses: actions/labeler@9fd24f1f9d6ceb64ba34d181b329ee72f99978a0  # v4.0.0
-        with:
-          repo-token: "${{ secrets.GITHUB_TOKEN }}"
-          configuration-path: ".github/community-pr-label.yml"