Apply suggestions from code review

Author: SimenB

e2e/global-setup-esm/__tests__/test.js

@@ -4,7 +4,6 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  */
-'use strict';
 
 import os from 'os';
 import path from 'path';