[Debian-med-packaging] invesalius is marked for autoremoval from testing

[Debian testing autoremoval watch]

invesalius 3.1.99992-2 is marked for autoremoval from testing on 2018-12-21

It (build-)depends on packages with these RC bugs:
907806: scikit-learn: FTBFS in buster/sid (could not import 'distributed')
913622: dask: fails autopkgtest with cloudpickle 0.5.6-1