Revert D8932114: [sonar] Add state tracking plumbing

Differential Revision:
D8932114

Original commit changeset: fb03babfe92b

fbshipit-source-id: a6a372a4115d69b5419a8c9924b333e7c163497b

xplat/Sonar/SonarState.h

@@ -1,37 +0,0 @@
-/*
- *  Copyright (c) 2018-present, Facebook, Inc.
- *
- *  This source code is licensed under the MIT license found in the LICENSE
- *  file in the root directory of this source tree.
- *
- */
-
-#pragma once
-
-#include <memory>
-#include <string>
-
-class SonarStep;
-class SonarStateUpdateListener;
-
-class SonarState {
-  friend SonarStep;
-
- public:
-  SonarState();
-  void setUpdateListener(std::shared_ptr<SonarStateUpdateListener>);
-  std::string getState();
-
-  /* To record a state update, call start() with the name of the step to get a
-   SonarStep object. Call complete on this to register it successful,
-   the absense of the completion call when it is destructed will register as a
-   step failure. */
-  std::shared_ptr<SonarStep> start(std::string step);
-
- private:
-  void success(std::string);
-  void failed(std::string, std::string);
-  void started(std::string);
-  std::shared_ptr<SonarStateUpdateListener> mListener = nullptr;
-  std::string stateUpdates;
-};