I guess they're good to go now that we've cleaned up old ebuilds.
That's fine, given full double-checks are done of non-usage, etc.
gnonlin is still using one of them
# @DEAD # Michał Górny <mgorny@gentoo.org> (16 May 2017) # gst-plugins* eclasses are no longer used. They will be removed # in 30 days.
commit 42082963b74cc568da03b4e1f8a51e9f2276fac1 Author: Michał Górny <mgorny@gentoo.org> AuthorDate: Wed Jun 21 20:13:43 2017 Commit: Michał Górny <mgorny@gentoo.org> CommitDate: Wed Jun 21 20:17:16 2017 gst-plugins*.eclass: Remove last rited eclasses, #587816