Delete polymer from the Dart repo

pkg/polymer/e2e_test/experimental_boot/test/double_init_test.dart

Index: pkg/polymer/e2e_test/experimental_boot/test/double_init_test.dart
diff --git a/pkg/polymer/e2e_test/experimental_boot/test/double_init_test.dart b/pkg/polymer/e2e_test/experimental_boot/test/double_init_test.dart
deleted file mode 100644
index fe6a2f2f08250bd8e2f7f6437ad41ad48d8d4426..0000000000000000000000000000000000000000
--- a/pkg/polymer/e2e_test/experimental_boot/test/double_init_test.dart
+++ /dev/null
@@ -1,19 +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 experimental_boot.test.double_init_test;
-
-import 'dart:async';
-import 'dart:js' as js;
-
-import 'package:polymer/polymer.dart';
-import 'package:unittest/html_config.dart';
-import 'package:unittest/unittest.dart';
-
-@initMethod
-init() {
-  useHtmlConfiguration();
-  test('can\'t call initPolymer when using polymer_experimental', () {
-    expect(() => initPolymer(), throwsA("Initialization was already done."));
-  });
-}