xfrm: No need to copy generic neighbour pointer.

Nobody reads it any longer.
Signed-off-by: David S. Miller <davem@davemloft.net>

net/xfrm/xfrm_policy.c

@@ -1500,9 +1500,6 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
 	if (!dev)
 		goto free_dst;
 
-	/* Copy neighbour for reachability confirmation */
-	dst_set_neighbour(dst0, neigh_clone(dst_get_neighbour_noref(dst)));
-
 	xfrm_init_path((struct xfrm_dst *)dst0, dst, nfheader_len);
 	xfrm_init_pmtu(dst_prev);