Great question — answering as the UphillTech team:
When Google next does a crawl, it will mark them and eventually remove them. If you are bothered by them existing right now, you can use the Google Removal Tool Help . It only removes it temporarily and if the page is found, it will be in the search results again. You do need to make sure that those URLs do not link to a live page. Very important notes: A successful request lasts only about six months. After that, your information can appear on Google search results (see Making removal permanent). Blocking a URL does not prevent Google from crawling your page, only from showing it in Search results. When you request a temporary block of a URL, Google can continue to crawl the URL if it...
Full answer by Rohit Gupta: https://webmasters.stackexchange.com/a/140243 (CC BY-SA 4.0).
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