Getting rid of outdated Google results depends on who owns the page. If you...

https://telegra.ph/My-404-page-says-not-found-but-Google-wont-drop-it---what-am-I-missing-03-22

Getting rid of outdated Google results depends on who owns the page. If you control the site, update the content and let Google re-crawl it. If you don’t own the site, use Google’s "Remove Outdated Content" tool