Revert "Build Observatory with runtime"

runtime/observatory/lib/app.dart

Index: runtime/observatory/lib/app.dart
diff --git a/runtime/observatory/lib/app.dart b/runtime/observatory/lib/app.dart
deleted file mode 100644
index 6a422fe31516452bae96385e1a0ecc9734962814..0000000000000000000000000000000000000000
--- a/runtime/observatory/lib/app.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// 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.
-
-library app;
-
-import 'dart:async';
-import 'dart:convert';
-import 'dart:html';
-import 'dart:js';
-import 'dart:math';
-
-import 'package:logging/logging.dart';
-import 'package:observatory/service_html.dart';
-import 'package:observatory/elements.dart';
-import 'package:observatory/tracer.dart';
-import 'package:polymer/polymer.dart';
-
-part 'src/app/application.dart';
-part 'src/app/chart.dart';
-part 'src/app/location_manager.dart';
-part 'src/app/page.dart';
-part 'src/app/settings.dart';
-part 'src/app/target_manager.dart';
-part 'src/app/utils.dart';
-part 'src/app/view_model.dart';