openmpi: Do not create PRRTE configuration file

Author: dalcinl

.github/workflows/openmpi.yml

@@ -103,8 +103,6 @@ jobs:
         echo mpi_param_check = true >> "$mca_params"
         echo mpi_show_handle_leaks = true >> "$mca_params"
         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"
 
     - name: Show MPI