services/ui: Remove deprecated gpu code

services/ui/gles2/raster_thread_helper.cc

Index: services/ui/gles2/raster_thread_helper.cc
diff --git a/services/ui/gles2/raster_thread_helper.cc b/services/ui/gles2/raster_thread_helper.cc
deleted file mode 100644
index 8e27d3273c2bdb203c7b3036e9aeff2adffb6576..0000000000000000000000000000000000000000
--- a/services/ui/gles2/raster_thread_helper.cc
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "services/ui/gles2/raster_thread_helper.h"
-
-#include "base/logging.h"
-#include "base/threading/simple_thread.h"
-#include "cc/raster/single_thread_task_graph_runner.h"
-
-namespace gles2 {
-
-RasterThreadHelper::RasterThreadHelper()
-    : task_graph_runner_(new cc::SingleThreadTaskGraphRunner) {
-  task_graph_runner_->Start("CompositorTileWorker1",
-                            base::SimpleThread::Options());
-}
-
-RasterThreadHelper::~RasterThreadHelper() {
-  task_graph_runner_->Shutdown();
-}
-
-cc::TaskGraphRunner* RasterThreadHelper::task_graph_runner() {
-  return task_graph_runner_.get();
-}
-
-}  // namespace gles2