Revert "orte: Fix MPI_Spawn"

This reverts commit 9f7e2098ac639bc42ec0e02150d1d5d488b160c7.

orte/orted/pmix/pmix_server_register_fns.c

@@ -74,6 +74,11 @@ int orte_pmix_server_register_nspace(orte_job_t *jdata)
                         ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
                         ORTE_JOBID_PRINT(jdata->jobid));
 
+    /* if this job has no local procs, then no need to register them */
+    if (0 == jdata->num_local_procs) {
+        return ORTE_SUCCESS;
+    }
+
     /* setup the info list */
     info = OBJ_NEW(opal_list_t);
     uid = geteuid();