ipv6: local dev is actually unused in ip6_fragment

Signed-off-by: NDenis V. Lunev <den@openvz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv6/ip6_output.c

@@ -613,7 +613,6 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
 
 static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 {
-	struct net_device *dev;
 	struct sk_buff *frag;
 	struct rt6_info *rt = (struct rt6_info*)skb->dst;
 	struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
@@ -624,7 +623,6 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 	int ptr, offset = 0, err=0;
 	u8 *prevhdr, nexthdr = 0;
 
-	dev = rt->u.dst.dev;
 	hlen = ip6_find_1stfragopt(skb, &prevhdr);
 	nexthdr = *prevhdr;