[Debian-astro-maintainers] gammapy is marked for autoremoval from testing

[Debian testing autoremoval watch]

gammapy 0.9-1 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
913757: healpy: python-numpy breaks healpy autopkgtest
914245: h5py: FTBFS against hdf5 1.10.4 now in unstable