Revert of DevTools: clean up scripts folder

third_party/WebKit/Source/devtools/scripts/gulp/concatenate_protocols.js

-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-var path = require("path");
-
-var jsonfile = require("jsonfile");
-
-var utils = require("../utils");
-
-module.exports = function main(protocols, output)
-{
-    var domains = [];
-    var version;
-    for (var i = 0; i < protocols.length; i++) {
-        var protocol = protocols[i];
-        if (!utils.isFile(protocol))
-            throw new Error(`Cannot find ${protocol}`);
-        var json = require(protocol);
-        domains = domains.concat(json.domains);
-        version = json.version;
-    }
-    var combinedProtocol = {
-        version,
-        domains
-    };
-    jsonfile.writeFileSync(output, combinedProtocol, {spaces: 4});
-};