openvswitch: Remove ovs_vport_output_sk

This was a compatibility function needed while the ipv4 and ipv6
fragmentation code was being modified to pass a struct net through
them.  Now that is complete this function has no more users so remove
it.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

net/openvswitch/actions.c

@@ -645,11 +645,6 @@ static int ovs_vport_output(struct net *net, struct sock *sk, struct sk_buff *sk
 	ovs_vport_send(vport, skb);
 	return 0;
 }
-static int ovs_vport_output_sk(struct sock *sk, struct sk_buff *skb)
-{
-	struct net *net = dev_net(skb_dst(skb)->dev);
-	return ovs_vport_output(net, sk, skb);
-}
 
 static unsigned int
 ovs_dst_get_mtu(const struct dst_entry *dst)