Remove old hack to avoid reception of SUB_DATA signals to destroyed Ndb object

sql/ha_ndbcluster_binlog.cc

@@ -3958,10 +3958,6 @@ pthread_handler_t ndb_binlog_thread_func(void *arg)
   close_thread_tables(thd);
   pthread_mutex_lock(&injector_mutex);
   /* don't mess with the injector_ndb anymore from other threads */
-  uint ndb_obj_cnt= 1; // g_ndb
-  ndb_obj_cnt+= injector_ndb == 0 ? 0 : 1;
-  ndb_obj_cnt+= schema_ndb == 0 ? 0 : 1;
-  ndb_obj_cnt+= ndbcluster_util_inited ? 1 : 0;
   injector_thd= 0;
   injector_ndb= 0;
   p_latest_trans_gci= 0;
@@ -3969,29 +3965,8 @@ pthread_handler_t ndb_binlog_thread_func(void *arg)
   pthread_mutex_unlock(&injector_mutex);
   thd->db= 0; // as not to try to free memory
 
-  if (!ndb_extra_logging)
-    sql_print_information("Stopping Cluster Binlog");
-  else
-    sql_print_information("Stopping Cluster Binlog: %u(%u)", 
-			  g_ndb_cluster_connection->get_active_ndb_objects(), 
-			  ndb_obj_cnt);
+  sql_print_information("Stopping Cluster Binlog");
 
-  /**
-   * Add extra wait loop to make user "user" ndb-object go away...
-   *   otherwise user thread can have ongoing SUB_DATA
-   */
-  int sleep_cnt= 0;
-  while (sleep_cnt < 300 &&
-         g_ndb_cluster_connection->get_active_ndb_objects() > ndb_obj_cnt)
-  {
-    my_sleep(10000); // 10ms
-    sleep_cnt++;
-  }
-  if (ndb_extra_logging)
-    sql_print_information("Stopping Cluster Binlog: waited %ums %u(%u)", 
-			  10*sleep_cnt, g_ndb_cluster_connection->get_active_ndb_objects(), 
-			  ndb_obj_cnt);
-  
   if (ndb_apply_status_share)
   {
     free_share(&ndb_apply_status_share);