ci: remove Docker Hub description sync (#8303)

.github/workflows/docker.yml

@@ -551,54 +551,6 @@ jobs:
           if-no-files-found: error
           retention-days: 30
 
-  # Docker Hub's overview is a separate `full_description` field that
-  # `docker push` never touches, so it drifted from README.md and kept
-  # linking to pages that no longer exist (#7995). Republish it from the
-  # commit the images were built from, only when images were pushed.
-  sync-dockerhub-description:
-    name: Sync Docker Hub Description
-    needs: [ build-check, build-docker ]
-    if: needs.build-check.outputs.should_build == 'true' && needs.build-check.outputs.should_push == 'true'
-    runs-on: sm-standard-2
-    timeout-minutes: 10
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@f548e57e544e1ff5a4c46bf1e1b8685f8e4a348a # v7
-        with:
-          persist-credentials: false
-          ref: ${{ needs.build-check.outputs.source_ref }}
-          sparse-checkout: README.md
-          sparse-checkout-cone-mode: false
-
-      - name: Sync Docker Hub description
-        uses: peter-evans/dockerhub-description@1b9a80c056b620d92cedb9d9b5a223409c68ddfa # v5.0.0
-        with:
-          username: ${{ env.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-          repository: ${{ env.REGISTRY_DOCKERHUB }}
-          readme-filepath: ./README.md
-          # README.md links to docs/ and CONTRIBUTING.md by relative path;
-          # rewrite those to github.com URLs so they resolve on Docker Hub.
-          enable-url-completion: true
-
-      # Docker Hub caps `full_description` at 25,000 bytes and the action
-      # truncates to fit with only a warning, which would publish a README
-      # cut off mid-sentence. README.md is already near the cap, so read the
-      # published overview back and fail if it hit the limit.
-      - name: Check published description was not truncated
-        env:
-          REPOSITORY: ${{ env.REGISTRY_DOCKERHUB }}
-        run: |
-          limit=25000
-          published=$(curl -sSf "https://hub.docker.com/v2/repositories/${REPOSITORY}/" \
-            | jq -j '.full_description' | wc -c | tr -d ' ')
-          echo "Published overview: ${published} bytes (Docker Hub limit: ${limit})"
-          # Truncation lands within one UTF-8 character of the cap.
-          if [ "$published" -ge $((limit - 4)) ]; then
-            echo "::error file=README.md::Docker Hub overview was truncated at ${limit} bytes; trim README.md before the next release."
-            exit 1
-          fi
-
   # Docker build summary
   docker-summary:
     name: Docker Build Summary