Reverting merge 219520. This change was not necessary.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@219720 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_iax2.c

@@ -3064,6 +3064,7 @@ static void __attempt_transmit(const void *data)
 		AST_LIST_REMOVE(&iaxq.queue, f, list);
 		iaxq.count--;
 		AST_LIST_UNLOCK(&iaxq.queue);
+		f->retrans = -1; /* this is safe because this is the scheduled function */
 		/* Free the IAX frame */
 		iax2_frame_free(f);
 	}