wireless:hostap_main.c warning: variable 'iface' set but not used

The patch below fixes a warning message Im seeing with gcc 4.6.0
 CC [M]  drivers/net/wireless/hostap/hostap_main.o
drivers/net/wireless/hostap/hostap_main.c: In function 'hostap_set_multicast_list_queue':
drivers/net/wireless/hostap/hostap_main.c:744:27: warning: variable 'iface' set but not used
Signed-off-by: NJustin P. Mattock <justinmattock@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/hostap/hostap_main.c

@@ -741,9 +741,7 @@ void hostap_set_multicast_list_queue(struct work_struct *work)
 	local_info_t *local =
 		container_of(work, local_info_t, set_multicast_list_queue);
 	struct net_device *dev = local->dev;
-	struct hostap_interface *iface;
 
-	iface = netdev_priv(dev);
 	if (hostap_set_word(dev, HFA384X_RID_PROMISCUOUSMODE,
 			    local->is_promisc)) {
 		printk(KERN_INFO "%s: %sabling promiscuous mode failed\n",