I haven't had to use this option since, I think, version 5.44 or even earlier, so I'm not sure when it disappeared.
Was this an oversight or a policy decision? It was certainly convenient. If you try to delete the Old Windows installation folder after the biannual update (like, right now, for instance) you have to sit there and watch it, interminably, so you can field any "helpful" questions from the system that stop the process. When CCleaner did it, it just did it and you could walk away during the entire long process.