Bug#908880: debian-edu-config: Stop using dh_gconf

[Jeremy Bicha <jbicha@debian.org>]

Source: debian-edu-config
Version: 2.10.35
Severity: important
User: pkg-gnome-maintainers@lists.alioth.debian.org
Usertags: oldlibs gconf

Please stop using dh_gconf. We intend to remove it during the Bullseye
cycle. See https://bugs.debian.org/908845 .

This file isn't useful since GNOME hasn't used gconf in years so this
setting is just being ignored. (I don't see any similar setting in
gsettings.)

https://salsa.debian.org/debian-edu/debian-edu-config/blob/master/debian/gconf-defaults

Thanks,
Jeremy Bicha