Revert of Add the concept of a V8 extras exports object

test/cctest/test-extra.js

Index: test/cctest/test-extra.js
diff --git a/test/cctest/test-extra.js b/test/cctest/test-extra.js
deleted file mode 100644
index 4584352d1d5d4b7c6a369f23691538bd283dacda..0000000000000000000000000000000000000000
--- a/test/cctest/test-extra.js
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright 2015 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-(function () {
-    'use strict';
-
-    extrasExports.testExtraShouldReturnFive = function () {
-        return 5;
-    };
-})();