Remove EventListener attributes from Dart DOM API.

lib/dom/scripts/generator.py

 #!/usr/bin/python
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 """This module provides shared functionality for systems to generate
 Dart APIs from the IDL database."""
 
 import re
 
 _pure_interfaces = set([
     'ElementTimeControl',
     'ElementTraversal',
+    'EventTarget',
     'MediaQueryListListener',
     'NodeSelector',
     'SVGExternalResourcesRequired',
     'SVGFilterPrimitiveStandardAttributes',
     'SVGFitToViewBox',
     'SVGLangSpace',
     'SVGLocatable',
     'SVGStylable',
     'SVGTests',
     'SVGTransformable',
@@ skipping 613 matching lines @@
     '"SVGAnimatedPropertyTearOff.h"',
     '"SVGAnimatedListPropertyTearOff.h"',
     '"SVGStaticListPropertyTearOff.h"',
     '"SVGAnimatedListPropertyTearOff.h"',
     '"SVGTransformListPropertyTearOff.h"',
     '"SVGPathSegListPropertyTearOff.h"',
 ]
 
 def GetIDLTypeInfo(idl_type_name):
   return _idl_type_registry.get(idl_type_name, IDLTypeInfo(idl_type_name))