Bug#885799: multimedia-devel: Drop obsolete Recommends

[Jeremy Bicha <jbicha@debian.org>]

> Regarding libart-2.0-dev (which is actually still part of testing and
> unstable at the moment), removing these would mean that people running
> stable would not be able to find the package on the blends website:
> https://blends.debian.org/multimedia/tasks/

I feel that design has some problems. Maybe it should show a different
list depending on whether the visitor is interested in Debian 9 or in
Debian Testing.

But I don't have time to work on any of this.

libart-lgpl will still be around in Debian 10 "Buster" so I guess you
can close this bug now.

> We normally only remove packages from the blends tasks once the package
> is completely removed from the archive. I am not aware of a "recommends"
> blocking a testing migration before, but if I am wrong - please feel
> free to raise the severity when it happens.

I think there is a significant issue here. For instance, shutter was
just removed from Debian Unstable today. User upgrading from Debian 9
with the multimedia-graphics package installed will still have shutter
installed because another package recommends it. But it will not be
possible for Debian to provide any security updates for shutter or any
of the other libraries or apps that have been removed over the years.

Thanks,
Jeremy Bicha