mac80211: remove useless open_count check

__ieee80211_suspend() checks early on if there's anything
to do by checking open_count, so there's no need to check
again later in the function. Remove the useless check.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/pm.c

@@ -178,8 +178,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	WARN_ON(!list_empty(&local->chanctx_list));
 
 	/* stop hardware - this must stop RX */
-	if (local->open_count)
-		ieee80211_stop_device(local);
+	ieee80211_stop_device(local);
 
  suspend:
 	local->suspended = true;