cfg80211: Remove unused wiphy flag

The only user of WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS was removed
and consequently, this flag can be removed, too. In addition, a single
capability flag was not enough to indicate this capability clearly since
the device behavior may be different based on which operating mode is
being used.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 6187766..d8be198 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -580,8 +580,7 @@
 
 	wiphy->flags |= WIPHY_FLAG_NETNS_OK |
 			WIPHY_FLAG_4ADDR_AP |
-			WIPHY_FLAG_4ADDR_STATION |
-			WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS;
+			WIPHY_FLAG_4ADDR_STATION;
 
 	if (!ops->set_key)
 		wiphy->flags |= WIPHY_FLAG_IBSS_RSN;