rds: cleanup: remove unneeded variable

We never use "sk" so this patch removes it.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/rds/af_rds.c

@@ -451,7 +451,6 @@ static void rds_sock_inc_info(struct socket *sock, unsigned int len,
 			      struct rds_info_lengths *lens)
 {
 	struct rds_sock *rs;
-	struct sock *sk;
 	struct rds_incoming *inc;
 	unsigned long flags;
 	unsigned int total = 0;
@@ -461,7 +460,6 @@ static void rds_sock_inc_info(struct socket *sock, unsigned int len,
 	spin_lock_irqsave(&rds_sock_lock, flags);
 
 	list_for_each_entry(rs, &rds_sock_list, rs_item) {
-		sk = rds_rs_to_sk(rs);
 		read_lock(&rs->rs_recv_lock);
 
 		/* XXX too lazy to maintain counts.. */