dont use prte mca conf file in mpi4py gh action

Signed-off-by: Howard Pritchard <[email protected]>

.github/workflows/ompi_mpi4py.yaml

@@ -79,7 +79,7 @@ jobs:
         echo rmaps_base_oversubscribe = true >> "$mca_params"
         mca_params="$HOME/.prte/mca-params.conf"
         mkdir -p "$(dirname "$mca_params")"
-        echo rmaps_default_mapping_policy = :oversubscribe >> "$mca_params"
+#       echo rmaps_default_mapping_policy = :oversubscribe >> "$mca_params"
 
     - name: Show MPI
       run:  ompi_info