check-dbus-services: remove special case for e-d-s

We fixed UserPrompter0 by moving to systemd activation.

Reviewed-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Differential Revision: https://phabricator.apertis.org/D3901