[IPV6]: Remove unneeded pointer iph from ipcomp6_input() in net/ipv6/ipcomp6.c

This trivial patch removes the unneeded pointer iph, which is never used.
Signed-off-by: Micah Gruber <micah.gruber@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/ipcomp6.c

@@ -65,7 +65,6 @@ static LIST_HEAD(ipcomp6_tfms_list);
 static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
 {
 	int err = -ENOMEM;
-	struct ipv6hdr *iph;
 	struct ipv6_comp_hdr *ipch;
 	int plen, dlen;
 	struct ipcomp_data *ipcd = x->data;
@@ -79,7 +78,6 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
 	skb->ip_summed = CHECKSUM_NONE;
 
 	/* Remove ipcomp header and decompress original payload */
-	iph = ipv6_hdr(skb);
 	ipch = (void *)skb->data;
 	skb->transport_header = skb->network_header + sizeof(*ipch);
 	__skb_pull(skb, sizeof(*ipch));