batman-adv: Remove unused hdr_size variable in route_unicast_packet()

Signed-off-by: Linus Lüssing <linus.luessing@ascom.ch>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 42cb6e2..c172f5d 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -1263,8 +1263,7 @@
 	return 0;
 }
 
-int route_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if,
-			 int hdr_size)
+int route_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if)
 {
 	struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface);
 	struct orig_node *orig_node = NULL;
@@ -1365,7 +1364,7 @@
 		return NET_RX_SUCCESS;
 	}
 
-	return route_unicast_packet(skb, recv_if, hdr_size);
+	return route_unicast_packet(skb, recv_if);
 }
 
 int recv_ucast_frag_packet(struct sk_buff *skb, struct hard_iface *recv_if)
@@ -1398,7 +1397,7 @@
 		return NET_RX_SUCCESS;
 	}
 
-	return route_unicast_packet(skb, recv_if, hdr_size);
+	return route_unicast_packet(skb, recv_if);
 }