Why does Steam keep redownloading Basalt, Edin, Palais, and Whistle?

These four maps were removed from all game modes on the 7th of May but they've remained in the game install folder. I thought no big deal, I'm just going to delete them manually but almost every new CS2 patch keeps redownloading them. Why?

I've never played on them, I don't have any game demo downloaded for them and they are not even available to play on anymore unless I want to join a community server or I host them manually.