Remove deprecated classes related to segmentation.
Summary:
These classes were marked as deprecated many years ago.
Remove deprecated OverwriteSliceImageFilter
Remove deprecated OverwriteDirectedPlaneImageFilter
Remove deprecated QmitkOtsuAction
Test Plan: manual
Reviewers: kislinsk, O1 MITK Reviewer Group I, floca
Reviewed By: kislinsk, O1 MITK Reviewer Group I, floca
Subscribers: kalali, kislinsk
Maniphest Tasks: T28635
Differential Revision: https://phabricator.mitk.org/D526