[GCS]Remove unused class variable (#13454)

src/ray/gcs/gcs_client/service_based_accessor.h

@@ -120,8 +120,6 @@ class ServiceBasedActorInfoAccessor : public ActorInfoAccessor {
       GUARDED_BY(mutex_);
 
   ServiceBasedGcsClient *client_impl_;
-
-  Sequencer<ActorID> sequencer_;
 };
 
 /// \class ServiceBasedNodeInfoAccessor
@@ -181,13 +179,6 @@ class ServiceBasedNodeInfoAccessor : public NodeInfoAccessor {
   /// server restarts from a failure.
   FetchDataOperation fetch_node_data_operation_;
 
-  // Mutex to protect the cached_resource_usage_ field.
-  absl::Mutex mutex_;
-
-  /// Save the resource usage data, so we can resend it again when GCS server restarts
-  /// from a failure.
-  rpc::ReportResourceUsageRequest cached_resource_usage_ GUARDED_BY(mutex_);
-
   void HandleNotification(const rpc::GcsNodeInfo &node_info);
 
   ServiceBasedGcsClient *client_impl_;