Remove misc usage of whitelist in tests and comments

Seems pretty straight forward.

Javascript failure

 1)
    Drupal\Tests\views_ui\FunctionalJavascript\FilterEntityReferenceTest::testAddConfigEntityReferenceFieldWithDefaultSelectionHandler
    WebDriver\Exception\StaleElementReference: stale element reference: stale
    element not found in the current frame
      (Session info: chrome-headless-shell=127.0.6533.119)

Seems unrelated. I noticed some weirdness with javascript runner on a contrib module last night so bet it's the same.

Committed/pushed to 11.x, thanks!

catch → closed merge request !9370

Automatically closed - issue fixed for 2 weeks with no activity.