Bug#912860: Don't ship libgtk2-perl in Bullseye

[intrigeri]

Hi,

intrigeri:
> I've filed bug reports against all reverse dependencies (normal
> severity for now), tracked using the gtk2-removal usertag

Since then, one new reverse dependency appeared in the archive
(libcircle-fe-gtk-perl), against which I've also filed a bug.

I intend to make all these bugs RC during DebCamp. Maintainers and
upstreams will have 18 more months to port packages to current GTK, in
addition to the 8 months they already had since the announcement
on -devel@¹ and the bugs I've filed.

[1] https://lists.debian.org/debian-devel/2018/11/msg00570.html

Cheers,
-- 
intrigeri