Engadget:

Last year at F8, one of Mark Zuckerberg's major announcements was "Clear History," which was touted as a way for Facebook users to have the ability to delete their account history. It was promised to arrive last year, and then was delayed until "spring 2019." Unfortunately, however, it's apparently been delayed even further. At an event at Facebook today to go over the company's latest integrity efforts, VP of Integrity Guy Rosen said that the "Clear History" feature has been pushed to fall of this year.

I’m beginning to think that this will never actually come out. Not a shock.