Revert "removed 2nd load_callbacks that was causeing dupe output"

This reverts commit de98dc2968.

lib/ansible/executor/playbook_executor.py

@@ -122,6 +122,9 @@ class PlaybookExecutor:
                         entry['plays'].append(p)
 
                     else:
+                        # make sure the tqm has callbacks loaded
+                        self._tqm.load_callbacks()
+
                         # we are actually running plays
                         for batch in self._get_serialized_batches(new_play):
                             if len(batch) == 0: