--- a/devtools/client/shared/vendor/moz.build
+++ b/devtools/client/shared/vendor/moz.build
@@ -8,17 +8,16 @@ DIRS += [
     'stringvalidator',
 ]
 
 DevToolsModules(
     'immutable.js',
     'jsol.js',
     'jszip.js',
     'lodash.js',
-    'react-addons-shallow-compare.js',
     'react-dom-factories.js',
     'react-dom-server.js',
     'react-dom.js',
     'react-prop-types.js',
     'react-redux.js',
     'react.js',
     'redux.js',
     'reselect.js',

deleted file mode 100644
--- a/devtools/client/shared/vendor/react-addons-shallow-compare.js
+++ /dev/null
@@ -1,9 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-module.exports = require("devtools/client/shared/vendor/react").addons.shallowCompare;