Remove unnecessary @ListOf() in test.
Remove unnecessary @ListOf() in test.

staats-google/webdriver.dart,bwu-dart-contributing/webdriver.dart,DrMarcII/webdriver.dart,staats-google/webdriver.dart,DrMarcII/webdriver.dart,staats-google/webdriver.dart,google/webdriver.dart,bwu-dart-contributing/webdriver.dart,bwu-dart-contributing/webdriver.dart,google/webdriver.dart,google/webdriver.dart,staats-google/webdriver.dart,DrMarcII/webdriver.dart,DrMarcII/webdriver.dart,bwu-dart-contributing/webdriver.dart