Removed Polymer from Observatory deps

packages/polymer/test/publish_attributes_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.
-
-import 'dart:html';
-import 'package:unittest/unittest.dart';
-import 'package:unittest/html_config.dart';
-import 'package:polymer/polymer.dart';
-
-// Dart note: unlike JS, you can't publish something that doesn't
-// have a corresponding field because we can't dynamically add properties.
-// So we define XFoo and XBar types here.
-@CustomTag('x-foo')
-class XFoo extends PolymerElement {
-  XFoo.created() : super.created();
-
-  @observable var Foo;
-  @observable var baz;
-}
-
-@CustomTag('x-bar')
-class XBar extends XFoo {
-  XBar.created() : super.created();
-
-  @observable var Bar;
-}
-
-@CustomTag('x-zot')
-class XZot extends XBar {
-  XZot.created() : super.created();
-
-  @published int zot = 3;
-}
-
-@CustomTag('x-squid')
-class XSquid extends XZot {
-  XSquid.created() : super.created();
-
-  @published int baz = 13;
-  @published int zot = 3;
-  @published int squid = 7;
-}
-
-// Test inherited "attriubtes"
-class XBaz extends PolymerElement {
-  XBaz.created() : super.created();
-  @observable int qux = 13;
-}
-
-@CustomTag('x-qux')
-class XQux extends XBaz {
-  XQux.created() : super.created();
-}
-
-main() => initPolymer().then((zone) => zone.run(() {
-  useHtmlConfiguration();
-
-  setUp(() => Polymer.onReady);
-
-  test('published properties', () {
-    published(tag) =>
-        (new Element.tag(tag) as PolymerElement).element.publishedProperties;
-
-    expect(published('x-foo'), ['Foo', 'baz']);
-    expect(published('x-bar'), ['Foo', 'baz', 'Bar']);
-    expect(published('x-zot'), ['Foo', 'baz', 'Bar', 'zot']);
-    expect(published('x-squid'), ['Foo', 'baz', 'Bar', 'zot', 'squid']);
-    expect(published('x-qux'), ['qux']);
-  });
-}));