wifi: mac80211: mlme: remove pointless sta check

We already exited the function if sta ended up NULL,
so just remove the extra check.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230301115906.4cbac9cfd03a.I21ec81c96d246afdabc2b0807d3856e6b1182cb7@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/mlme.c

@@ -5893,7 +5893,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link,
 		goto free;
 	}
 
-	if (sta && elems->opmode_notif)
+	if (elems->opmode_notif)
 		ieee80211_vht_handle_opmode(sdata, link_sta,
 					    *elems->opmode_notif,
 					    rx_status->band);