Revert of Oilpan: Prepare to move RenderObject and RenderObjectChildList to Oilpan heap.

Source/core/rendering/svg/RenderSVGContainer.cpp

Index: Source/core/rendering/svg/RenderSVGContainer.cpp
diff --git a/Source/core/rendering/svg/RenderSVGContainer.cpp b/Source/core/rendering/svg/RenderSVGContainer.cpp
index e1795f8808443e7a608978a14418de07e473a9f2..69f9171883b1fb0b6e45c95967d2ac6722a75a9e 100644
--- a/Source/core/rendering/svg/RenderSVGContainer.cpp
+++ b/Source/core/rendering/svg/RenderSVGContainer.cpp
@@ -46,12 +46,6 @@
 
 RenderSVGContainer::~RenderSVGContainer()
 {
-}
-
-void RenderSVGContainer::trace(Visitor* visitor)
-{
-    visitor->trace(m_children);
-    RenderSVGModelObject::trace(visitor);
 }
 
 void RenderSVGContainer::layout()