Remove parts of //cc we aren't using

cc/resources/raster_buffer.cc

Index: cc/resources/raster_buffer.cc
diff --git a/cc/resources/raster_buffer.cc b/cc/resources/raster_buffer.cc
deleted file mode 100644
index 8f5671720e386ef03d7bea099ab3ce6164dcacd8..0000000000000000000000000000000000000000
--- a/cc/resources/raster_buffer.cc
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2014 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 "cc/resources/raster_buffer.h"
-
-namespace cc {
-
-RasterBuffer::RasterBuffer() {
-}
-
-RasterBuffer::~RasterBuffer() {
-}
-
-}  // namespace cc