Bug#1098760: openssh: remove /bin/slogin

Source: openssh
Severity: important

Dear Maintainer,

debian's packaging of openssh still creates the ancient /bin/slogin ->
/bin/ssh symlink, which upstream removed many releases ago.

It's created by debian/rules

Please get rid of it asap so that it's not released with debian trixie.
The added benefit is that debian will deviate from upstream less, and
slo<Tab> autocompletion will not match this useless symlink.

Fedora got rid of it[1] almost 10 years ago and did not need to bring it
back.

[1] https://fedoraproject.org/wiki/Changes/Remove_slogin_and_sshd-keygen