Removed Polymer from Observatory deps

packages/polymer/test/auto_binding_test.dart

-// Copyright (c) 2014, 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:async';
-import 'dart:html';
-import 'package:polymer/auto_binding.dart';
-import 'package:polymer/polymer.dart';
-import 'package:unittest/unittest.dart';
-import 'package:unittest/html_config.dart';
-
-class TestModel {
-  var greeting = 'Hi';
-  eventAction(e) {
-    e.detail.add('handled');
-  }
-}
-
-main() => initPolymer().then((zone) => zone.run(() {
-  useHtmlConfiguration();
-
-  setUp(() => Polymer.onReady);
-
-  test('elements upgraded', () {
-    AutoBindingElement template = document.getElementById('one');
-    template.model = new TestModel();
-
-    var completer = new Completer();
-    var events = 0;
-    window.addEventListener('template-bound', (e) {
-      events++;
-      if (e.target.id == 'one') {
-        expect(e.target, template);
-
-        var t = template;
-        var h = t.$['h'];
-        expect(h.text, t.model.greeting, reason: 'binding applied');
-        var ce = t.fire('tap', onNode: h, detail: []);
-        expect(ce.detail, ['handled'], reason: 'element event handler fired');
-      }
-
-      if (events == 3) completer.complete();
-    });
-
-    /// test dynamic creation
-    new Future(() {
-      var d = new DivElement();
-      d.setInnerHtml('<template is="auto-binding">Dynamical'
-          ' <input value="{{value}}"><div>{{value}}</div></template>',
-          treeSanitizer: new _NullSanitizer());
-      document.body.append(d);
-    });
-
-    return completer.future;
-  });
-}));
-
-class _NullSanitizer implements NodeTreeSanitizer {
-  sanitizeTree(Node node) {}
-}