Missing information on removing Monster

[PierreGuyot]

rustrogueliketutorial/book/src/chapter_57.md

Line 1509 in 33872fe

We're no longer using the `Bystander`, `Monster`, `Carnivore`, `Herbivore` and `Vendor` tags! Open up `components.rs` and delete them. You'll also need to delete their registration in `main.rs` and `saveload_system.rs`. Once they are gone, you will still see errors in `player.rs`; why? We used to use these tags to determine if we should attack or trade-places with an NPC. We can replace the failing code in `try_move_player` quite easily. First, remove the references to these components from your `using` statements. Then replace these two lines:

At this point in the tutorial, Monster is still used in inventory_system.
From what I see in the code repository, checks on wether the target is a monster or not have been removed silently here and here.

It should be mentioned in the text of the tutorial before the part about removing Monster.
Also, should there be a replacement check here, like testing if the target as some attributes?