It's not on one new model (the iPhone XR). The iPhone XS and XS Max still have it. However, they were already selling a phone without it - the iPhone SE; the iPhone XR is designed to be the new "cheap" option. No net change in the number of new iPhone options without it.

> Didn't last very long at all.

They introduced it with iPhone 6S, so even if it's not on a single model next year (which is doubtful), it would have been a 4+ year feature