Delete pop-pop-win from the repo

samples/pop_pop_win/lib/src/game.dart

Index: samples/pop_pop_win/lib/src/game.dart
diff --git a/samples/pop_pop_win/lib/src/game.dart b/samples/pop_pop_win/lib/src/game.dart
deleted file mode 100644
index 654d62699c8b332b15999834b7aea535170d546f..0000000000000000000000000000000000000000
--- a/samples/pop_pop_win/lib/src/game.dart
+++ /dev/null
@@ -1,15 +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.game;
-
-import 'dart:async';
-import 'dart:collection';
-import 'dart:math';
-
-import 'package:bot/bot.dart' show Array2d, require;
-
-part 'game/field.dart';
-part 'game/game.dart';
-part 'game/game_state.dart';
-part 'game/square_state.dart';