Remove unused/unneeded code from core/editing.

Source/core/editing/htmlediting.h

Index: Source/core/editing/htmlediting.h
diff --git a/Source/core/editing/htmlediting.h b/Source/core/editing/htmlediting.h
index ffc57e436c4217ba655efe58b5048b658d87f806..1742aa079636252aa08459d7f606ffa11f8b7502 100644
--- a/Source/core/editing/htmlediting.h
+++ b/Source/core/editing/htmlediting.h
@@ -40,7 +40,6 @@ class ExceptionState;
 class HTMLBRElement;
 class HTMLElement;
 class HTMLLIElement;
-class HTMLOListElement;
 class HTMLSpanElement;
 class HTMLUListElement;
 class Node;
@@ -205,7 +204,6 @@ VisiblePosition visiblePositionForIndex(int index, ContainerNode* scope);
 
 PassRefPtrWillBeRawPtr<HTMLElement> createDefaultParagraphElement(Document&);
 PassRefPtrWillBeRawPtr<HTMLBRElement> createBreakElement(Document&);
-PassRefPtrWillBeRawPtr<HTMLOListElement> createOrderedListElement(Document&);
 PassRefPtrWillBeRawPtr<HTMLUListElement> createUnorderedListElement(Document&);
 PassRefPtrWillBeRawPtr<HTMLLIElement> createListItemElement(Document&);
 PassRefPtrWillBeRawPtr<HTMLElement> createHTMLElement(Document&, const QualifiedName&);