message: tests(image-stream): remove unnecessary big timeout
  See:
diff: @@ -25,8 +25,6 @@ const imageStream = require('../../lib/image-stream/index');
  describe('ImageStream: Directory', function() {
  - this.timeout(20000);
  -
  describe('.getFromFilePath()', function() {
  describe('given a directory', function() {
  