NFC: Remove warning from nfc_llcp_local_put

The socket local pointer can be NULL when a socket is created but never
bound or connected.
Reported-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

net/nfc/llcp/llcp.c

@@ -123,8 +123,6 @@ static void local_release(struct kref *ref)
 
 int nfc_llcp_local_put(struct nfc_llcp_local *local)
 {
-	WARN_ON(local == NULL);
-
 	if (local == NULL)
 		return 0;