remove single arch step whcih is not required

Author: Sapana-Khemkar

.github/workflows/build-test-publish.yml

@@ -156,20 +156,6 @@ jobs:
         push: ${{ github.event_name != 'pull_request' }}
         tags: ${{ steps.single-arch-meta-arm64.outputs.tags }}
         labels: ${{ steps.single-arch-meta-arm64.outputs.labels }}  
-    - name: OCI Metadata for single-arch ppc64le image
-      #if: startsWith(github.ref, 'refs/tags/v')
-      id: single-arch-meta-ppc64le
-      uses: docker/metadata-action@v4
-      with:
-        # list of Docker images to use as base name for tags
-        images: |
-          rabbitmqoperator/cluster-operator
-        flavor: |
-          latest=false
-        # generate Docker tags based on the following events/attributes
-        tags: |
-          type=semver,pattern={{version}},suffix=-ppc64le,latest=false
-          type=sha,suffix=-ppc64le,latest=false
     - name: Build manifest
       if: github.event_name != 'pull_request'
       env: