Delete pop-pop-win from the repo

samples/pop_pop_win/web/platform_web.dart

Index: samples/pop_pop_win/web/platform_web.dart
diff --git a/samples/pop_pop_win/web/platform_web.dart b/samples/pop_pop_win/web/platform_web.dart
deleted file mode 100644
index fbeb0662121c13938a772c531c56d1faee75eeb1..0000000000000000000000000000000000000000
--- a/samples/pop_pop_win/web/platform_web.dart
+++ /dev/null
@@ -1,91 +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 pop_pop_win.platform_web;
-
-import 'dart:async';
-import 'dart:html';
-import 'package:pop_pop_win/platform_target.dart';
-
-class PlatformWeb extends PlatformTarget {
-  static const String _ABOUT_HASH = '#about';
-  bool _sizeAccessed = false;
-
-  final StreamController _aboutController = new StreamController(sync: true);
-
-  PlatformWeb() : super.base() {
-    window.onPopState.listen((args) => _processUrlHash());
-  }
-
-  @override
-  Future clearValues() {
-    window.localStorage.clear();
-    return new Future.value();
-  }
-
-  @override
-  Future setValue(String key, String value) {
-    window.localStorage[key] = value;
-    return new Future.value();
-  }
-
-  @override
-  Future<String> getValue(String key) =>
-      new Future.value(window.localStorage[key]);
-
-  int get size {
-    _sizeAccessed = true;
-    var hash = (_urlHash == null) ? '7' : _urlHash;
-    hash = hash.replaceAll('#', '');
-    return int.parse(hash, onError: (e) => 7);
-  }
-
-  bool get showAbout => _urlHash == _ABOUT_HASH;
-
-  Stream get aboutChanged => _aboutController.stream;
-
-  void toggleAbout([bool value]) {
-    var loc = window.location;
-    // ensure we treat empty hash like '#', which makes comparison easy later
-    var hash = loc.hash.length == 0 ? '#' : loc.hash;
-
-    var isOpen = hash == _ABOUT_HASH;
-    if (value == null) {
-      // then toggle the current value
-      value = !isOpen;
-    }
-
-    var targetHash = value ? _ABOUT_HASH : '#';
-    if (targetHash != hash) {
-      loc.assign(targetHash);
-    }
-    _aboutController.add(null);
-  }
-
-  String get _urlHash => window.location.hash;
-
-  void _processUrlHash() {
-    var loc = window.location;
-    var hash = loc.hash;
-    var href = loc.href;
-
-    switch (hash) {
-      case "#reset":
-        assert(href.endsWith(hash));
-        var newLoc = href.substring(0, href.length - hash.length);
-
-        window.localStorage.clear();
-
-        loc.replace(newLoc);
-        break;
-      case _ABOUT_HASH:
-        _aboutController.add(null);
-        break;
-      default:
-        if (hash.isNotEmpty && _sizeAccessed) {
-          loc.reload();
-        }
-        break;
-    }
-  }
-}