Remove unneeded field, and the two uses of it.

This commit was SVN r17757.

orte/mca/ras/base/ras_base_allocate.c

@@ -217,7 +217,7 @@ int orte_ras_base_allocate(orte_job_t *jdata)
      * by -host across all app_contexts
      */
     for (i=0; i < jdata->num_apps; i++) {
-        if (0 < apps[i]->num_map) {
+        if (NULL != apps[i]->dash_host) {
             if (ORTE_SUCCESS != (rc = orte_util_add_dash_host_nodes(&nodes,
                                                     &override_oversubscribed,
                                                     apps[i]->dash_host))) {

orte/runtime/data_type_support/orte_dt_copy_fns.c

@@ -298,7 +298,6 @@ int orte_dt_copy_app_context(orte_app_context_t **dest, orte_app_context_t *src,
         (*dest)->add_hostfile = strdup(src->add_hostfile);
     }
     
-    (*dest)->num_map = src->num_map;
     (*dest)->preload_binary = src->preload_binary;
     
     if( NULL != src->preload_files)

orte/runtime/orte_globals.h

@@ -84,8 +84,6 @@ typedef struct {
     char *hostfile;
     /* Hostfile for adding hosts to an existing allocation */
     char *add_hostfile;
-    /** Length of the map_data array, not including the final NULL entry */
-    orte_std_cntr_t num_map;
     /** argv of hosts passed in to -host */
     char ** dash_host;
     /** Prefix directory for this app (or NULL if no override necessary) */