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I will remove the unused item.

Quoting my reply from #4308

Since these are all handled by Weblate, removing them here is not ideal as there will be bi-directional confusion (merge conflicts here, Weblate going screwy there).

They waste a miniscule amount of space and don't hurt anything, and peacemeal cleanup is a pain until we get most of the strings normalized.

I'm going to close this out; please don't be discouraged by this, it's just how the system is set up.

Basically, removing strings from translations - or making any changes to translations at all - should be done only through Weblate. I believe there's a mass-cleanup option of some kind, but I haven't looked into it in detail.

In effect the translation folder should be off-limits from the GitHub side.