Get rid of Element#classList in the wrapperless DOM.

client/html/dartium/html_dartium.dart

Index: client/html/dartium/html_dartium.dart
diff --git a/client/html/dartium/html_dartium.dart b/client/html/dartium/html_dartium.dart
index 9f7aa1f44f38686c4d46b51deff2e11577ad1459..0ce5db7019e9a94689973128f1c9549b8a54cecd 100644
--- a/client/html/dartium/html_dartium.dart
+++ b/client/html/dartium/html_dartium.dart
@@ -7531,8 +7531,6 @@ class _ElementImpl extends _NodeImpl implements Element {
 
   HTMLCollection get _children() => _wrap(_ptr.children);
 
-  DOMTokenList get classList() => _wrap(_ptr.classList);
-
   String get _className() => _wrap(_ptr.className);
 
   void set _className(String value) { _ptr.className = _unwrap(value); }
@@ -25742,8 +25740,6 @@ interface Element extends Node, NodeSelector default _ElementFactoryProvider {
 
   final HTMLCollection _children;
 
-  final DOMTokenList classList;
-
   String _className;
 
   final int _clientHeight;