[Debian-med-packaging] srst2 is marked for autoremoval from testing

[Debian testing autoremoval watch]

srst2 0.2.0-6 is marked for autoremoval from testing on 2019-03-21

It (build-)depends on packages with these RC bugs:
919928: htslib, src:python-pysam: htslib breaks python-pysam autopkgtest
922149: t-coffee: t-coffee ignores build failures