Cleaning up old search results depends entirely on who controls the site. If...

https://www.livebinders.com/b/3701443?tabid=486e82cb-7b25-4308-f1cb-d71cc9b39c99

Cleaning up old search results depends entirely on who controls the site. If you own the page, delete it or return a 404 error, then use the "Removals" tool in Search Console for a quick fix