[Sketch] CC Animations: Torpedo the old intrusive animation system.

cc/trees/layer_tree_settings.cc

Index: cc/trees/layer_tree_settings.cc
diff --git a/cc/trees/layer_tree_settings.cc b/cc/trees/layer_tree_settings.cc
index ce8445e19375183bf17f05c142730448a8d00422..4e7a2812d270a87530fe9e739d95affa881abd91 100644
--- a/cc/trees/layer_tree_settings.cc
+++ b/cc/trees/layer_tree_settings.cc
@@ -70,8 +70,7 @@ LayerTreeSettings::LayerTreeSettings()
       record_full_layer(false),
       use_display_lists(false),
       verify_property_trees(false),
-      gather_pixel_refs(false),
-      use_compositor_animation_timelines(false) {
+      gather_pixel_refs(false) {
 }
 
 LayerTreeSettings::~LayerTreeSettings() {}