Revert "Build Observatory with runtime"

runtime/observatory/lib/src/elements/script_view.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 script_view_element;
-
-import 'observatory_element.dart';
-import 'package:observatory/elements.dart';
-import 'package:observatory/service.dart';
-import 'package:polymer/polymer.dart';
-
-/// Displays an Script response.
-@CustomTag('script-view')
-class ScriptViewElement extends ObservatoryElement {
-  @published Script script;
-
-  ScriptViewElement.created() : super.created();
-
-  @override
-  void attached() {
-    super.attached();
-    if (script == null) {
-      return;
-    }
-    script.load();
-  }
-
-  void refresh(var done) {
-    script.reload().whenComplete(done);
-  }
-
-  void refreshCoverage(var done) {
-    script.refreshCoverage().whenComplete(done);
-  }
-}