[LTP] [kirk] Remove support for external testing suite

[Cyril Hrubis]

Hi!
> As you may know, Kirk supports the execution of certain kselftests and 
> liburing testing suites. It was initially created as an experiment.
> 
> We have made attempts to implement these features, but it seems we have 
> not succeeded. They appear to be largely unused by most users and are 
> creating a bottleneck for new Kirk implementations, such as the 
> automatic installation of LTP inside the SUT. This feature would be 
> particularly beneficial for QEMU vanilla images. We had it in the past 
> already and probably it's time to get this feature back. And we should 
> probably implement it for other testing suites due to the current API: 
> something that we really don't want to do (see eBPF kselftests compile 
> madness).
> 
> Another concern is the maintainability of supporting for additional 
> testing suites. While they are interesting, the implementation is 
> somewhat flawed. Each testing suite has its own 
> input/output/configuration/compilation methods, leading to confusion and 
> over-engineered solutions. While we understand that no solution is 
> perfect, it seems we have reached a point where Kirk = LTP. Therefore, 
> we should reconsider maintaining features that require updates due to 
> changes in external testing suites.
> 
> For these reasons, I propose that we remove support for the additional 
> testing suites and focus exclusively on LTP for Kirk maintenance.
> 
> What do you think?

Sounds reasonable to me. There is quite a bit of work to be done in
order to implement all the advanced features in kirk and it does not
help if we get distracted by side quests.

-- 
Cyril Hrubis
chrubis@suse.cz