Remove openglui embedder code

runtime/embedders/openglui/common/dart_host.h

Index: runtime/embedders/openglui/common/dart_host.h
diff --git a/runtime/embedders/openglui/common/dart_host.h b/runtime/embedders/openglui/common/dart_host.h
deleted file mode 100644
index 9233aa2fef9516c8415c625a3a6b766d24fa066e..0000000000000000000000000000000000000000
--- a/runtime/embedders/openglui/common/dart_host.h
+++ /dev/null
@@ -1,47 +0,0 @@
-// 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_COMMON_DART_HOST_H_
-#define EMBEDDERS_OPENGLUI_COMMON_DART_HOST_H_
-
-#include "embedders/openglui/common/context.h"
-#include "embedders/openglui/common/graphics_handler.h"
-#include "embedders/openglui/common/input_handler.h"
-#include "embedders/openglui/common/lifecycle_handler.h"
-#include "embedders/openglui/common/sound_handler.h"
-#include "embedders/openglui/common/timer.h"
-#include "embedders/openglui/common/vm_glue.h"
-#include "include/dart_api.h"
-
-class DartHost : public LifeCycleHandler {
- public:
-  explicit DartHost(Context* context);
-  virtual ~DartHost();
-
-  int32_t OnStart();
-  void OnSaveState(void** data, size_t* size);
-  void OnConfigurationChanged();
-  void OnLowMemory();
-  int32_t Activate();
-  void Deactivate();
-  void Pause();
-  int32_t Resume();
-  void FreeAllResources();
-  int32_t OnStep();
-
- private:
-  void Clear();
-
-  GraphicsHandler* graphics_handler_;
-  InputHandler* input_handler_;
-  SoundHandler* sound_handler_;
-  Timer* timer_;
-  VMGlue* vm_glue_;
-  bool has_context_;
-  bool started_;
-  bool active_;
-};
-
-#endif  // EMBEDDERS_OPENGLUI_COMMON_DART_HOST_H_
-