net core: Remove unneded creation of an empty net/core sysctl directory

On the next line we register the net_core_table in net/core which
creates the directory and ensures it exists.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/sysctl_net_core.c

@@ -255,9 +255,6 @@ static __net_initdata struct pernet_operations sysctl_core_ops = {
 
 static __init int sysctl_core_init(void)
 {
-	static struct ctl_table empty[1];
-
-	kmemleak_not_leak(register_net_sysctl_table(&init_net, net_core_path, empty));
 	register_net_sysctl(&init_net, "net/core", net_core_table);
 	return register_pernet_subsys(&sysctl_core_ops);
 }