Run hot_restart_web_ddc_library_bundle_test.dart on Mac/Windows (flutter#171282)

Part of flutter#171276

Author: mdebbar

packages/flutter_tools/test/web.shard/hot_restart_web_ddc_library_bundle_test.dart

@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-@TestOn('linux') // https://github.com/flutter/flutter/issues/169304
 @Tags(<String>['flutter-test-driver'])
 library;