[Tagging] Discarding converted_by

[Nelson A. de Oliveira]

Hi!

Do we have any need for "converted_by"
https://taginfo.openstreetmap.org/keys/converted_by#values or it could
be discarded while modifying an object, exactly what we already do
with "created_by" and some other tags? (ie, we won't mass remove the
tag, but only drop it while editing an object with this tag).

I am asking this because it seems to be as unimportant as created_by
(it doesn't add any useful information).

Thank you!

Best regards,
Nelson