decnet: remove unused variable from dn_output()

The variable 'neigh' is assigned to, but otherwise completely
unused. So let's remove it.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index f31ce72..80a3de4 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -724,11 +724,10 @@
 	struct dn_route *rt = (struct dn_route *)dst;
 	struct net_device *dev = dst->dev;
 	struct dn_skb_cb *cb = DN_SKB_CB(skb);
-	struct neighbour *neigh;
 
 	int err = -EINVAL;
 
-	if ((neigh = dst_get_neighbour_noref(dst)) == NULL)
+	if (dst_get_neighbour_noref(dst) == NULL)
 		goto error;
 
 	skb->dev = dev;