Remove some weird comments that are not really necessary causing confusion.

Source/core/rendering/RenderEmbeddedObject.cpp

Index: Source/core/rendering/RenderEmbeddedObject.cpp
diff --git a/Source/core/rendering/RenderEmbeddedObject.cpp b/Source/core/rendering/RenderEmbeddedObject.cpp
index f93f9cca8003e967a4e5dd049c9f0068b2a2c82e..5bbf99a3ce4f73889cc2912c499a53d18edd085b 100644
--- a/Source/core/rendering/RenderEmbeddedObject.cpp
+++ b/Source/core/rendering/RenderEmbeddedObject.cpp
@@ -231,9 +231,6 @@ void RenderEmbeddedObject::layout()
     if (newSize == oldSize && !childBox->needsLayout())
         return;
 
-    // When calling layout() on a child node, a parent must either push a LayoutStateMaintainter, or
-    // instantiate LayoutStateDisabler. Since using a LayoutStateMaintainer is slightly more efficient,
-    // and this method will be called many times per second during playback, use a LayoutStateMaintainer:
     LayoutStateMaintainer statePusher(this, locationOffset());
 
     childBox->setLocation(LayoutPoint(borderLeft(), borderTop()) + LayoutSize(paddingLeft(), paddingTop()));