855: Remove comment about `Vec::remove_item` r=kvark a=Pat-Lafon
Sadly, `Vec::remove_item` was an unstable method that was deprecated and has now been removed.
https://github.com/rust-lang/rust/pull/80972
This pr removes a comment suggesting to use `Vec::remove_item` when it stabilizes.
Co-authored-by: Patrick LaFontaine <32135464+Pat-Lafon@users.noreply.github.com>