net: ipv6: remove unused inline function ip6_set_txhash

commit 877d1f6291f8 ("net: Set sk_txhash from a random number")
left behind this, remove it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed