Hi

Similar to the removal request for unstable, #1150487, let's remove
libpasswd-unix-perl as well from the next trixie point release.

Passwd::Unix is now unmaintained for several years upstream, has
security issues open which will not be fixed, and has a very low
popocon.

It should be fairly low risk to remove it overall as well from trixie.

Regards,
Salvatore