Revert "Build Observatory with runtime"

runtime/observatory/lib/src/elements/context_view.dart

Index: runtime/observatory/lib/src/elements/context_view.dart
diff --git a/runtime/observatory/lib/src/elements/context_view.dart b/runtime/observatory/lib/src/elements/context_view.dart
deleted file mode 100644
index fdc05ec811a905c9900fa98b999d894c749b3c16..0000000000000000000000000000000000000000
--- a/runtime/observatory/lib/src/elements/context_view.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// 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 context_view_element;
-
-import 'dart:async';
-import 'observatory_element.dart';
-import 'package:observatory/service.dart';
-import 'package:polymer/polymer.dart';
-
-@CustomTag('context-view')
-class ContextViewElement extends ObservatoryElement {
-  @published Context context;
-
-  ContextViewElement.created() : super.created();
-
-  void refresh(Function onDone) {
-    context.reload().whenComplete(onDone);
-  }
-}