Bug#1035474: Don't include in Bookworm?

[Moritz Muehlenhoff <jmm@debian.org>]

Source: libdmx
Version: 1:1.1.4-2
Severity: serious

The Xorg folks mentioned at https://www.openwall.com/lists/oss-security/2023/05/02/3:

| We have also announced that we plan to retire the following packages soon
| and while their gitlab repos are not yet archived, we expect they will be
| archived in the future, and encourage distros that still ship them to
| consider retiring them on your side as well:
|
| lib/libdmx:
|  The Xdmx server was removed from the xorg-server sources in
|  xorg-server 21 (released Oct. 2021), so this is only useful
|  for communicating with Xdmx from the 1.20 and older releases.

Given that Bookworm has xorg-server 21 and there are no rdeps in the archive,
let's exclude it from bookworm (and remove entirely eventually)?

Cheers,
        Moritz