batman-adv: iv_ogm_orig_update, remove unnecessary brackets

Remove these unnecessary brackets inside a condition.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>

net/batman-adv/bat_iv_ogm.c

@@ -1081,7 +1081,7 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 	 * won't consider it either
 	 */
 	if (router_ifinfo &&
-	    (neigh_ifinfo->bat_iv.tq_avg == router_ifinfo->bat_iv.tq_avg)) {
+	    neigh_ifinfo->bat_iv.tq_avg == router_ifinfo->bat_iv.tq_avg) {
 		orig_node_tmp = router->orig_node;
 		spin_lock_bh(&orig_node_tmp->bat_iv.ogm_cnt_lock);
 		if_num = router->if_incoming->if_num;