Remove openglui embedder code

runtime/embedders/openglui/android/eventloop.h

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-#ifndef EMBEDDERS_OPENGLUI_ANDROID_EVENTLOOP_H_
-#define EMBEDDERS_OPENGLUI_ANDROID_EVENTLOOP_H_
-
-#include <android_native_app_glue.h>
-#include <android/sensor.h>
-#include "embedders/openglui/common/events.h"
-#include "embedders/openglui/common/input_handler.h"
-#include "embedders/openglui/common/lifecycle_handler.h"
-
-class EventLoop {
-  public:
-    explicit EventLoop(android_app* application);
-    void Run(LifeCycleHandler* activity_handler,
-             InputHandler* input_handler);
-
-  protected:
-    void EnableSensorEvents();
-    void DisableSensorEvents();
-
-    void ProcessActivityEvent(int32_t command);
-    int32_t ProcessInputEvent(AInputEvent* event);
-    void ProcessSensorEvent();
-
-    bool OnTouchEvent(AInputEvent* event);
-    bool OnKeyEvent(AInputEvent* event);
-
-    static void ActivityCallback(android_app* application, int32_t command);
-    static int32_t InputCallback(android_app* application, AInputEvent* event);
-    static void SensorCallback(android_app* application,
-        android_poll_source* source);
-
-  private:
-    friend class Sensor;
-
-    bool enabled_, quit_;
-    bool isResumed_, hasSurface_, hasFocus_;
-    android_app* application_;
-    LifeCycleHandler* lifecycle_handler_;
-    InputHandler* input_handler_;
-    const ASensor* sensor_;
-    ASensorManager* sensor_manager_;
-    ASensorEventQueue* sensor_event_queue_;
-    android_poll_source sensor_poll_source_;
-};
-
-#endif  // EMBEDDERS_OPENGLUI_ANDROID_EVENTLOOP_H_
-