ar9170: remove unnecessary call to ar9170_set_beacon_timers

Signed-off-by: Joerg Albert <jal2@gmx.de>
Acked-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c
index c0fc355..c1f8c69 100644
--- a/drivers/net/wireless/ath/ar9170/main.c
+++ b/drivers/net/wireless/ath/ar9170/main.c
@@ -2031,12 +2031,6 @@
 			goto out;
 	}
 
-	if (changed & BSS_CHANGED_BEACON_INT) {
-		err = ar9170_set_beacon_timers(ar);
-		if (err)
-			goto out;
-	}
-
 	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 
 		/* adjust slot time for 5 GHz */