veth: dont release skb->dst in veth_xmit()

No need to release skb->dst, its now done by core network.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/veth.c

@@ -176,8 +176,6 @@ static int veth_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (dev->features & NETIF_F_NO_CSUM)
 		skb->ip_summed = rcv_priv->ip_summed;
 
-	dst_release(skb->dst);
-	skb->dst = NULL;
 	skb->mark = 0;
 	secpath_reset(skb);
 	nf_reset(skb);