It’s kinda tough to actually delete stuff in any modern software house, by default you get multiple copies of everything everywhere without having to try (decentralised source & asset control), and then there are usually intentional backups on top of all that.

There’s also basically no benefit to deleting stuff, there’s not really much cost to be saved, and you never know if you’re going to want something again.

The only thing here is potential incompatibilities with stuff currently in the game and what’s been removed, but unless there’s some technical limits they’ve been pushing up against, it should be relatively straightforward to work on resolving those