Revert of Make SingleThreadProxy a SchedulerClient

android_webview/browser/hardware_renderer.cc

Index: android_webview/browser/hardware_renderer.cc
diff --git a/android_webview/browser/hardware_renderer.cc b/android_webview/browser/hardware_renderer.cc
index 5b4cf142e807eee3577387f7d4f8f500d1fc5cde..3f373960a8f70011b1f8da38454fe055d658f562 100644
--- a/android_webview/browser/hardware_renderer.cc
+++ b/android_webview/browser/hardware_renderer.cc
@@ -91,9 +91,6 @@
   // Webview does not own the surface so should not clear it.
   settings.should_clear_root_render_pass = false;
 
-  // TODO(enne): Update this this compositor to use a synchronous scheduler.
-  settings.single_thread_proxy_scheduler = false;
-
   layer_tree_host_ =
       cc::LayerTreeHost::CreateSingleThreaded(this, this, NULL, settings);
   layer_tree_host_->SetRootLayer(root_layer_);