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>
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index ce04cd7..c5ba7a7 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -1081,7 +1081,7 @@
 	 * 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;