Prevent more timeouts.

pkg/template_binding/test/node_bind_test.dart

 // Copyright (c) 2013, 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.
 
 library template_binding.test.node_bind_test;
 
 import 'dart:async';
 import 'dart:html';
 
 import 'package:observe/observe.dart'
     show toObservable, PathObserver, PropertyPath;
-import 'package:observe/mirrors_used.dart'; // make test smaller.
 import 'package:template_binding/template_binding.dart' show nodeBind;
 
 import 'package:unittest/html_config.dart';
 import 'package:unittest/unittest.dart';
 import 'utils.dart';
 
 // Note: this file ported from
 // https://github.com/toolkitchen/mdv/blob/master/tests/node_bindings.js
 
 main() => dirtyCheckZone().run(() {
@@ skipping 697 matching lines @@
     }).then(endOfMicrotask).then((_) {
       expect(select.value, 'X');
       expect(model['selected'], 'X');
 
       model['selected'] = 'a';
     }).then(endOfMicrotask).then((_) {
       expect(select.value, 'a');
     });
   });
 }