Remove form control related virtual methods from Element

Source/core/html/HTMLFormControlElement.cpp

Index: Source/core/html/HTMLFormControlElement.cpp
diff --git a/Source/core/html/HTMLFormControlElement.cpp b/Source/core/html/HTMLFormControlElement.cpp
index 03d1912a59322d9cd1a3befbaa851ac12dc7a83d..dfebc8f6993d13f8ca2ac34730ebe49163d94fec 100644
--- a/Source/core/html/HTMLFormControlElement.cpp
+++ b/Source/core/html/HTMLFormControlElement.cpp
@@ -254,11 +254,6 @@ void HTMLFormControlElement::removedFrom(ContainerNode* insertionPoint)
     FormAssociatedElement::removedFrom(insertionPoint);
 }
 
-bool HTMLFormControlElement::wasChangedSinceLastFormControlChangeEvent() const
-{
-    return m_wasChangedSinceLastFormControlChangeEvent;
-}
-
 void HTMLFormControlElement::setChangedSinceLastFormControlChangeEvent(bool changed)
 {
     m_wasChangedSinceLastFormControlChangeEvent = changed;