[NETLINK]: Remove dead code in af_netlink.c

Remove the variable nlk & call to nlk_sk as it does not have any side effect.

Signed-off-by: Jayachandran C. <c.jayachandran at gmail.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 678c3f2..eab4942 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -740,11 +740,8 @@
 
 int netlink_sendskb(struct sock *sk, struct sk_buff *skb, int protocol)
 {
-	struct netlink_sock *nlk;
 	int len = skb->len;
 
-	nlk = nlk_sk(sk);
-
 	skb_queue_tail(&sk->sk_receive_queue, skb);
 	sk->sk_data_ready(sk, len);
 	sock_put(sk);