Remove openglui embedder code

runtime/embedders/openglui/android/android_input_handler.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_ANDROID_INPUT_HANDLER_H_
-#define EMBEDDERS_OPENGLUI_ANDROID_ANDROID_INPUT_HANDLER_H_
-
-#include "embedders/openglui/common/graphics_handler.h"
-#include "embedders/openglui/common/input_handler.h"
-
-class AndroidInputHandler : public InputHandler {
-  public:
-    AndroidInputHandler(VMGlue* vm_glue,
-                        GraphicsHandler* graphics_handler)
-      : InputHandler(vm_glue),
-        graphics_handler_(graphics_handler) {
-    }
-
-  public:
-    int32_t Start() {
-      if (graphics_handler_->width() == 0 ||
-          graphics_handler_->height() == 0) {
-        return -1;
-      }
-      return 0;
-    }
-
-    void Stop() {
-    }
-
-  private:
-    GraphicsHandler* graphics_handler_;
-};
-
-#endif  // EMBEDDERS_OPENGLUI_ANDROID_ANDROID_INPUT_HANDLER_H_
-