Delete scheduling.ui
after #2916 (Delete efficientdeployment.ui)
(from redmine: issue id 2921, created on 2017-04-06, closed on 2018-03-05)
after #2916 (Delete efficientdeployment.ui)
(from redmine: issue id 2921, created on 2017-04-06, closed on 2018-03-05)