If you want to delete cloud saves from steam there’s no easy way. Either disable cloud-syncing or try google. There’s a method of doing that basically tricks steam cloud to delete old saves.
Well, here's the thing. I would NOT want to disable cloud saves in general. It's a very useful tool to have and I'm glad for its existence.
I would just love if the game/Steam client would stop re-downloading old-ass obsolete profiles that don't even work in the game anymore.