ipv6: sr: fix double free of skb after handling invalid SRH
The icmpv6_param_prob() function already does a kfree_skb(),
this patch removes the duplicate one.
Fixes: 7d7efa6a3cea7676f154b9605d66c7bf00e09c87 ("ipv6: implement dataplane support for rthdr type 4 (Segment Routing Header)") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David Lebrun <david.lebrun@uclouvain.be> Signed-off-by: David S. Miller <davem@davemloft.net>