connector: remove redundant input callback from cn_dev

A small cleanup: this callback is never used.
Originally fixed by Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>
for OpenVZ7 bug OVZ-6877

cc: stanislav.kinsburskiy@gmail.com
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/connector/connector.c

@@ -248,16 +248,12 @@ static int __maybe_unused cn_proc_show(struct seq_file *m, void *v)
 	return 0;
 }
 
-static struct cn_dev cdev = {
-	.input   = cn_rx_skb,
-};
-
 static int cn_init(void)
 {
 	struct cn_dev *dev = &cdev;
 	struct netlink_kernel_cfg cfg = {
 		.groups	= CN_NETLINK_USERS + 0xf,
-		.input	= dev->input,
+		.input	= cn_rx_skb,
 	};
 
 	dev->nls = netlink_kernel_create(&init_net, NETLINK_CONNECTOR, &cfg);

include/linux/connector.h

@@ -50,7 +50,6 @@ struct cn_dev {
 
 	u32 seq, groups;
 	struct sock *nls;
-	void (*input) (struct sk_buff *skb);
 
 	struct cn_queue_dev *cbdev;
 };