Bug#986106: libparse-keyword-perl: Upstream says "DO NOT USE!", no significant usage in Debian

[intrigeri at debian.org]

Package: libparse-keyword-perl
Version: 0.09-1
Severity: serious

As pointed out by Jonas Smedegaard a month ago¹, this module is
deprecated upstream: the upstream homepage² explicitly states "DO NOT
USE!".

Jonas analysis lead him to conclude that we can, and should, remove
this package and its (few) reverse (build-)dependencies from Debian.
I agreed and AFAICT nobody challenged this reasoning.

Let's start by ensuring this package is not shipped in Bullseye,
thanks to this RC bug.

I'll file removal requests for ftpmaster.

[1] https://alioth-lists.debian.net/pipermail/pkg-perl-maintainers/2021-February/144274.html
[2] https://metacpan.org/pod/Parse::Keyword