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

[Debian testing autoremoval watch]

gwcs 0.9.1-2 is marked for autoremoval from testing on 2019-02-11

It (build-)depends on packages with these RC bugs:
917709: astropy: FTBFS: dh_auto_test: pybuild --test --test-pytest -i python{version} -p 3.7 returned exit code 13