Drop slower Node::hasID() / Node::hasClass() methods

Source/core/dom/Element.h

Index: Source/core/dom/Element.h
diff --git a/Source/core/dom/Element.h b/Source/core/dom/Element.h
index 37a662c17dc8b064c4f144671cc5528ee507c081..fc5f92347cc74d0fb104de9df4597d54cacbe911 100644
--- a/Source/core/dom/Element.h
+++ b/Source/core/dom/Element.h
@@ -788,17 +788,6 @@ inline UniqueElementData& Element::ensureUniqueElementData()
     return toUniqueElementData(*m_elementData);
 }
 
-// Put here to make them inline.
-inline bool Node::hasID() const
-{
-    return isElementNode() && toElement(this)->hasID();
-}
-
-inline bool Node::hasClass() const
-{
-    return isElementNode() && toElement(this)->hasClass();
-}
-
 inline Node::InsertionNotificationRequest Node::insertedInto(ContainerNode* insertionPoint)
 {
     ASSERT(!childNeedsStyleInvalidation());