diff --git a/local-cli/bundle/sign.js b/local-cli/bundle/sign.js
deleted file mode 100644
index 609d0497a..000000000
--- a/local-cli/bundle/sign.js
+++ /dev/null
@@ -1,21 +0,0 @@
-/**
- * Copyright (c) 2015-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.
- */
-'use strict';
-
-const signedsource = require('./signedsource');
-const util = require('util');
-
-function sign(source) {
-  var ssToken = util.format('<<%sSource::*O*zOeWoEQle#+L!plEphiEmie@IsG>>', 'Signed');
-  var signedPackageText =
-    source + util.format('\n__SSTOKENSTRING = "@%s %s";\n', 'generated', ssToken);
-  return signedsource.sign(signedPackageText).signed_data;
-}
-
-module.exports = sign;