mac80211: remove useless tid assignment for management and control frames

This patch removes useless tid assignment for management and control frames

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/mac80211/wme.c

@@ -210,7 +210,6 @@ static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
 			kfree_skb(skb);
 			err = NET_XMIT_DROP;
 	} else {
-		tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
 		skb_set_queue_mapping(skb, queue);
 		qdisc = q->queues[queue];
 		err = qdisc->enqueue(skb, qdisc);