rt2x00: Remove intf->bssid field.

The bssid field in struct rt2x00_intf is only written to once, and is
never read from.

Remove this field, as it appears to not be needed.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2x00.h

@@ -364,11 +364,6 @@ struct rt2x00_intf {
 	 */
 	u8 mac[ETH_ALEN];
 
-	/*
-	 * BBSID of the AP to associate with.
-	 */
-	u8 bssid[ETH_ALEN];
-
 	/*
 	 * beacon->skb must be protected with the mutex.
 	 */

drivers/net/wireless/rt2x00/rt2x00mac.c

@@ -614,17 +614,6 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
 	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return;
 
-	spin_lock(&intf->lock);
-
-	/*
-	 * conf->bssid can be NULL if coming from the internal
-	 * beacon update routine.
-	 */
-	if (changes & BSS_CHANGED_BSSID)
-		memcpy(&intf->bssid, bss_conf->bssid, ETH_ALEN);
-
-	spin_unlock(&intf->lock);
-
 	/*
 	 * Call rt2x00_config_intf() outside of the spinlock context since
 	 * the call will sleep for USB drivers. By using the ieee80211_if_conf