net/ipv6: Do not reset nl_net in ip6_route_info_create

nl_net is set on entry to ip6_route_info_create. Only devices
within that namespace are considered so no need to reset it
before returning.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/route.c

@@ -3138,8 +3138,6 @@ install_route:
 	rt->fib6_nh.nh_dev = dev;
 	rt->fib6_table = table;
 
-	cfg->fc_nlinfo.nl_net = dev_net(dev);
-
 	if (idev)
 		in6_dev_put(idev);