Revert "Build Observatory with runtime"

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

Index: runtime/observatory/lib/src/elements/service_exception_view.dart
diff --git a/runtime/observatory/lib/src/elements/service_exception_view.dart b/runtime/observatory/lib/src/elements/service_exception_view.dart
deleted file mode 100644
index 9a161e4830d1225a0f3efb3d5a0fa030a8dfe352..0000000000000000000000000000000000000000
--- a/runtime/observatory/lib/src/elements/service_exception_view.dart
+++ /dev/null
@@ -1,17 +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 service_exception_view_element;
-
-import 'observatory_element.dart';
-import 'package:polymer/polymer.dart';
-import 'package:observatory/service.dart';
-
-/// Displays a ServiceException
-@CustomTag('service-exception-view')
-class ServiceExceptionViewElement extends ObservatoryElement {
-  @published ServiceException exception;
-
-  ServiceExceptionViewElement.created() : super.created();
-}