SUNRPC: Clean up rpc_run_timer()

All RPC timeout callback functions are expected to wake the task up. We can
enforce this by moving the wakeup back into rpc_run_timer.

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

net/sunrpc/xprt.c

@@ -777,8 +777,6 @@ static void xprt_timer(struct rpc_task *task)
 			xprt->ops->timer(task);
 		task->tk_status = -ETIMEDOUT;
 	}
-	task->tk_timeout = 0;
-	rpc_wake_up_task(task);
 	spin_unlock(&xprt->transport_lock);
 }