ip6_gre: remove redundant 'tunnel' setting in ip6erspan_tap_init()

'tunnel' was already set at the start of ip6erspan_tap_init().

Fixes: 5a963eb6 ("ip6_gre: Add ERSPAN native tunnel support")
Signed-off-by: NAlexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv6/ip6_gre.c

@@ -1762,7 +1762,6 @@ static int ip6erspan_tap_init(struct net_device *dev)
 		dev->mtu -= 8;
 
 	dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
-	tunnel = netdev_priv(dev);
 	ip6gre_tnl_link_config(tunnel, 1);
 
 	return 0;