When mock_runner.sh runs an STDCI script, before starting the script itself, it runs various commands inside the chroot that are meant to do various things like take care of logging and work around various historical mock issues.
Those commands hade made the mock_runner.sh code harder to maintain and have caused various issues such as OVIRT-2386.
The aim of this ticket is to do work required so that running such commands inside mock will no-longer be needed. Specific things that need to be done include:
Verify that all existing setup commands are indeed no longer needed, or could otherwise be replaced by other means such as mock configuration
Redirect log messages from mock into a file so that the mock output includeds only the user script output