Remove Unused measure DocumentTypeEntities

Source/core/dom/NamedNodeMap.h

Index: Source/core/dom/NamedNodeMap.h
diff --git a/Source/core/dom/NamedNodeMap.h b/Source/core/dom/NamedNodeMap.h
index f01102c9957060a9e7832196eaf6e75f53a35b1e..d167e77eec2956fb55c2c15d35c6325d64e3bbc1 100644
--- a/Source/core/dom/NamedNodeMap.h
+++ b/Source/core/dom/NamedNodeMap.h
@@ -68,7 +68,7 @@ private:
     explicit NamedNodeMap(Element* element)
         : m_element(element)
     {
-        // Only supports NamedNodeMaps with Element associated, DocumentType.entities and DocumentType.notations are not supported yet.
+        // Only supports NamedNodeMaps with Element associated.
         ASSERT(m_element);
         ScriptWrappable::init(this);
     }