Fix typo in grpcomm_pmi_module.c that was giving the wrong locality for direct launched jobs. Refs trac:3824

This commit was SVN r29348.

The following Trac tickets were found above:
  Ticket 3824 --> https://svn.open-mpi.org/trac/ompi/ticket/3824

orte/mca/grpcomm/pmi/grpcomm_pmi_module.c

@@ -183,7 +183,7 @@ static int modex(orte_grpcomm_collective_t *coll)
         }
         free(pmapping);
 
-        if ((local_rank_count > 0) && (local_rank_count < (int)orte_process_info.num_procs)) {
+        if (local_rank_count > 0) {
             local_ranks = (int*)malloc(local_rank_count * sizeof(int));
             for (i=0; i < local_rank_count; i++) {
                 local_ranks[i] = n + i;