ci: remove obsolete chromedriverpatch (#18515)

Dart(ium) is not used anymore in Angular so this file should be obsolete

PR Close #18515

tools/chromedriverpatch.js

@@ -1,31 +0,0 @@
-/**
- * @license
- * Copyright Google Inc. All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-
-/**
- * Patch Protractor so that it uses ChromeDriver 2.14 instead of 2.15.
- *
- * This is necessary because as of v2.1.0, Protractor by default uses
- * chromedriver 2.15. However, angular need to test against Dartium, which
- * is an old version of Chromium which is incompatible with Chromedriver > 2.14.
- *
- * TODO(juliemr): Remove this script once Dartium has been updated.
- */
-var fs = require('fs');
-var path = require('path');
-
-var protractorConfigFile = path.resolve(require.resolve('protractor'), '../../config.json');
-
-var newConfig = {
-  'webdriverVersions': {
-    'selenium': '2.45.0',
-    'chromedriver': '2.14',
-    'iedriver': '2.45.0',
-  }
-};
-
-fs.writeFile(protractorConfigFile, JSON.stringify(newConfig));