We hit a -Wstrict-prototypes error which was fixed in the latest release
of libcdio-paranoia but openbsd is too old. We already have coverage of
this in other CIs so remove it.
Mostly. It is annoying if we want to add some flag/option to all the cis
and then have to do it manually. Things easily get missed that way.
Skipped powershell because of course I'm not going to deal with that.