Remove the Dromaeo and TodoMVC samples.

samples/third_party/todomvc_performance/web/performance.dart

Index: samples/third_party/todomvc_performance/web/performance.dart
diff --git a/samples/third_party/todomvc_performance/web/performance.dart b/samples/third_party/todomvc_performance/web/performance.dart
deleted file mode 100644
index 93ce1dc4f367ac74cdbf35e406d1a3482a6e92f1..0000000000000000000000000000000000000000
--- a/samples/third_party/todomvc_performance/web/performance.dart
+++ /dev/null
@@ -1,23 +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 todomvc_performance;
-
-import 'dart:async';
-import 'dart:html';
-import 'dart:js' as js;
-import 'package:polymer/polymer.dart';
-import 'package:web_components/polyfill.dart';
-import 'elements/td_model.dart';
-
-/**
- * This test determines how fast the TodoMVC app has loaded.
- */
-main() {
-  initPolymer();
-  Polymer.onReady.then((_) {
-    var endInitTime = new DateTime.now();
-    window.postMessage(endInitTime.millisecondsSinceEpoch, '*');
-  });
-}