remove runs on from build

Signed-off-by: Srikanth Ramakrishna <srikanth.ramakrishna@intel.com>

Author: sramakintel

.github/workflows/apptainer-ci.yaml

@@ -59,7 +59,6 @@ jobs:
           echo "FOLDERS=$DOCKER_COMPOSE_PATHS_JSON" >> $GITHUB_OUTPUT
   setup-build:
     needs: [group-diff]
-    runs-on: ${{ github.repository_owner == 'intel' && 'intel-ubuntu-latest' || 'ubuntu-latest' }}
     if: needs.group-diff.outputs.groups != '[""]'
     strategy:
       matrix: