ath9k_hw: remove useless hw capability flags

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index b32c8f0..6fb3b45 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -119,8 +119,7 @@
 	ath9k_hw_setrxfilter(ah, rfilt);
 
 	/* configure bssid mask */
-	if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
-		ath_hw_setbssidmask(common);
+	ath_hw_setbssidmask(common);
 
 	/* configure operational mode */
 	ath9k_hw_setopmode(ah);