Merge pull request 'OZG-5870 cleanup code related to "kiel hackathon"' (#418) from OZG-5870-AusbauKielHackathonStrecke into master

Reviewed-on: https://git.ozg-sh.de/ozgcloud-app/vorgang-manager/pulls/418


Reviewed-by: OZGCloud <ozgcloud@mgm-tp.com>