[NETLINK]: Remove duplicate declarations

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/netlink.h

@@ -134,13 +134,6 @@ int netlink_attachskb(struct sock *sk, struct sk_buff *skb, int nonblock, long t
 void netlink_detachskb(struct sock *sk, struct sk_buff *skb);
 int netlink_sendskb(struct sock *sk, struct sk_buff *skb, int protocol);
 
-/* finegrained unicast helpers: */
-struct sock *netlink_getsockbypid(struct sock *ssk, u32 pid);
-struct sock *netlink_getsockbyfilp(struct file *filp);
-int netlink_attachskb(struct sock *sk, struct sk_buff *skb, int nonblock, long timeo);
-void netlink_detachskb(struct sock *sk, struct sk_buff *skb);
-int netlink_sendskb(struct sock *sk, struct sk_buff *skb, int protocol);
-
 /*
  *	skb should fit one page. This choice is good for headerless malloc.
  *