remove alder32.js (#9905)

scripts/rollup/shims/facebook-www/adler32.js

@@ -1,18 +0,0 @@
-/**
- * Copyright 2013-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @providesModule adler32
- */
-
-'use strict';
-
-const {
-  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED,
-} = require('ReactDOM-fb');
-
-module.exports = __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.adler32;