Remove cluster_client_t::stop()

src/cluster_client.h

@@ -87,8 +87,8 @@ public:
     cluster_client_t(ring_loop_t *ringloop, timerfd_manager_t *tfd, json11::Json & config);
     ~cluster_client_t();
     void execute(cluster_op_t *op);
+    bool is_ready();
     void on_ready(std::function<void(void)> fn);
-    void stop();
 
 protected:
     void continue_ops(bool up_retry = false);