Revert Implement <select> Popup Menu using PagePopup

Source/core/rendering/RenderMenuList.cpp

Index: Source/core/rendering/RenderMenuList.cpp
diff --git a/Source/core/rendering/RenderMenuList.cpp b/Source/core/rendering/RenderMenuList.cpp
index 7ecfaa09a87fb6ecc58a82e21754018f9c931e2e..ea821c5f7b406677c36fde93707f1bbf63a75bf6 100644
--- a/Source/core/rendering/RenderMenuList.cpp
+++ b/Source/core/rendering/RenderMenuList.cpp
@@ -386,21 +386,6 @@ bool RenderMenuList::multiple() const
     return selectElement()->multiple();
 }
 
-IntRect RenderMenuList::elementRectRelativeToRootView() const
-{
-    return selectElement()->document().view()->contentsToRootView(pixelSnappedIntRect(absoluteBoundingBoxRect()));
-}
-
-Element& RenderMenuList::ownerElement() const
-{
-    return *selectElement();
-}
-
-RenderStyle* RenderMenuList::renderStyleForItem(Element& element) const
-{
-    return element.renderStyle() ? element.renderStyle() : element.computedStyle();
-}
-
 void RenderMenuList::didSetSelectedIndex(int listIndex)
 {
     didUpdateActiveOption(selectElement()->listToOptionIndex(listIndex));