Verify and prune CODEOWNERS list for translations

[henrif75]

Hi code owners (@suetfei, @wnghl, @anlunx, ...), can you please take a look at this one?

@henrif75, I think we should consider pruning the list of code owners here in case some of them have moved on — this way the contributors will have a more clear picture of what to expect when creating a PR. It's a lot of work to review these PRs, so a huge thank you goes to the many volunteers here!

Originally posted by @mgeisler in #1992 (comment)

[suetfei]

I am OK with pruning myself.

[henrif75]

I am OK with pruning myself.
#2059
Thank you for your contributions so far @suetfei.