Remove dead code related to compositing from Sky

sky/engine/core/testing/DummyPageHolder.cpp

Index: sky/engine/core/testing/DummyPageHolder.cpp
diff --git a/sky/engine/core/testing/DummyPageHolder.cpp b/sky/engine/core/testing/DummyPageHolder.cpp
index b48ee077d0e8a52c05e57772550f724d7af0d8ff..75ed990810b80d7957bb6019993162a4400c0697 100644
--- a/sky/engine/core/testing/DummyPageHolder.cpp
+++ b/sky/engine/core/testing/DummyPageHolder.cpp
@@ -76,11 +76,6 @@ DummyPageHolder::DummyPageHolder(
     // FIXME(sky): Delete the tests that use DummyPageHolder since
     // they no longer work and we're not running them.
 
-    // Settings& settings = m_page->settings();
-    // FIXME: http://crbug.com/363843. This needs to find a better way to
-    // not create graphics layers.
-    // settings.setAcceleratedCompositingEnabled(false);
-
     m_frameLoaderClient = frameLoaderClient;
     if (!m_frameLoaderClient)
         m_frameLoaderClient = adoptPtr(new EmptyFrameLoaderClient);