rt2x00: Remove DRIVER_SUPPORT_MIXED_INTERFACES

A lot more is needed to support mixed interfaces then just this flag,
such things need new redesigns in rt2x00lib to actually make it happen.
So far there doesn't exist a Ralink chipset that can handle it, so
we might as well remove the flag for now and see what should be done
whenever a device appears that can handle it.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2x00.h

@@ -621,7 +621,6 @@ enum rt2x00_flags {
 	/*
 	 * Driver features
 	 */
-	DRIVER_SUPPORT_MIXED_INTERFACES,
 	DRIVER_REQUIRE_FIRMWARE,
 	DRIVER_REQUIRE_BEACON_GUARD,
 	DRIVER_REQUIRE_ATIM_QUEUE,

drivers/net/wireless/rt2x00/rt2x00mac.c

@@ -201,13 +201,12 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw,
 		return -ENODEV;
 
 	/*
-	 * When we don't support mixed interfaces (a combination
-	 * of sta and ap virtual interfaces) then we can only
-	 * add this interface when the rival interface count is 0.
+	 * We don't support mixed combinations of sta and ap virtual
+	 * interfaces. We can only add this interface when the rival
+	 * interface count is 0.
 	 */
-	if (!test_bit(DRIVER_SUPPORT_MIXED_INTERFACES, &rt2x00dev->flags) &&
-	    ((conf->type == IEEE80211_IF_TYPE_AP && rt2x00dev->intf_sta_count) ||
-	     (conf->type != IEEE80211_IF_TYPE_AP && rt2x00dev->intf_ap_count)))
+	if ((conf->type == IEEE80211_IF_TYPE_AP && rt2x00dev->intf_sta_count) ||
+	    (conf->type != IEEE80211_IF_TYPE_AP && rt2x00dev->intf_ap_count))
 		return -ENOBUFS;
 
 	/*