CC Animation: Erase cc::LayerSettings everywhere.

cc/test/layer_tree_settings_for_testing.cc

Index: cc/test/layer_tree_settings_for_testing.cc
diff --git a/cc/test/layer_tree_settings_for_testing.cc b/cc/test/layer_tree_settings_for_testing.cc
deleted file mode 100644
index dcc947d51ad039111f0c38373149a7a0663eccbf..0000000000000000000000000000000000000000
--- a/cc/test/layer_tree_settings_for_testing.cc
+++ /dev/null
@@ -1,16 +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 "cc/test/layer_tree_settings_for_testing.h"
-
-namespace cc {
-
-LayerTreeSettingsForTesting::LayerTreeSettingsForTesting()
-    : LayerTreeSettings() {
-  this->use_compositor_animation_timelines = true;
-}
-
-LayerTreeSettingsForTesting::~LayerTreeSettingsForTesting() {}
-
-}  // namespace cc