SUNRPC: Remove unused function rpc_queue_empty

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

include/linux/sunrpc/sched.h

@@ -238,7 +238,6 @@ struct rpc_task *rpc_wake_up_first(struct rpc_wait_queue *,
 					bool (*)(struct rpc_task *, void *),
 					void *);
 void		rpc_wake_up_status(struct rpc_wait_queue *, int);
-int		rpc_queue_empty(struct rpc_wait_queue *);
 void		rpc_delay(struct rpc_task *, unsigned long);
 void *		rpc_malloc(struct rpc_task *, size_t);
 void		rpc_free(void *);

net/sunrpc/sched.c

@@ -445,20 +445,6 @@ static void rpc_wake_up_task_queue_locked(struct rpc_wait_queue *queue, struct r
 	}
 }
 
-/*
- * Tests whether rpc queue is empty
- */
-int rpc_queue_empty(struct rpc_wait_queue *queue)
-{
-	int res;
-
-	spin_lock_bh(&queue->lock);
-	res = queue->qlen;
-	spin_unlock_bh(&queue->lock);
-	return res == 0;
-}
-EXPORT_SYMBOL_GPL(rpc_queue_empty);
-
 /*
  * Wake up a task on a specific queue
  */