Alexander Larsson 481e5c88f1 Drop old-glib ci test as ubuntu 16.04 is no longer available
As per https://github.com/actions/virtual-environments/issues/3287
the support for ubuntu-16.04 stopped working on september 20:th, so
our CI job stopped starting.

(This matches what we did on master)
2021-10-04 16:35:57 +01:00
..
2018-04-03 10:08:35 +02:00