ci: Remove not needed chown for ppc64

Now that all artifacts are owned by $USER no extra step needed
to adjust ownership

Signed-off-by: Zvonko Kaiser <zkaiser@nvidia.com>

.github/workflows/build-kata-static-tarball-ppc64le.yaml

@@ -36,16 +36,11 @@ jobs:
         stage:
           - ${{ inputs.stage }}
     steps:
-      - name: Adjust a permission for repo
-        run: |
-          sudo chown -R $USER:$USER $GITHUB_WORKSPACE
-
       - name: Prepare the self-hosted runner
         run: |
             ${HOME}/scripts/prepare_runner.sh
             sudo rm -rf $GITHUB_WORKSPACE/*
 
-
       - name: Login to Kata Containers quay.io
         if: ${{ inputs.push-to-registry == 'yes' }}
         uses: docker/login-action@v3