Revert "release: merge upstream sub-site on deploy"

.github/workflows/deploy.yml

@@ -65,18 +65,6 @@ jobs:
             docker-bake.hcl
           targets: release
           provenance: false
-      -
-        name: Login to Docker Hub
-        uses: docker/login-action@v4
-        with:
-          username: ${{ vars.DOCKER_USER }}
-          password: ${{ secrets.DOCKER_TOKEN }}
-      -
-        name: Merge sub-site
-        run: |
-          docker buildx build --output type=local,dest=public - <<'EOF'
-          FROM docs/dash:dist-latest
-          EOF
       -
         name: Configure AWS Credentials
         if: ${{ env.DOCS_AWS_IAM_ROLE != '' }}