Revert "Build Observatory with runtime"

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

Index: runtime/observatory/lib/src/elements/error_view.dart
diff --git a/runtime/observatory/lib/src/elements/error_view.dart b/runtime/observatory/lib/src/elements/error_view.dart
deleted file mode 100644
index 53582cc84ba0388534a9d7420288b42e54be665d..0000000000000000000000000000000000000000
--- a/runtime/observatory/lib/src/elements/error_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 error_view_element;
-
-import 'observatory_element.dart';
-import 'package:polymer/polymer.dart';
-import 'package:observatory/service.dart';
-
-/// Displays an Error ServiceObject.
-@CustomTag('error-view')
-class ErrorViewElement extends ObservatoryElement {
-  @published DartError error;
-
-  ErrorViewElement.created() : super.created();
-}