Some parts of the interface are not really working and have been in this status for a long time, either because a feature is boken and hard to fix, or because it was never really implemented in the first place.
Other parts are not really used and could be removed, HEA is helpful to determine these situations to some extent, but not everything can be seen there.
This omnibus will be used to link tickets related to cleaning up parts of Koha that can be removed.
It turns out there is a word for what i am concerned with here: feature creep.
This is maybe a more positive way of phrasing this initiative, so i'm adding this to the bug title.