Buildah got vendored into podman last week, and the script
went kablooie because of ever-so-slight conflicts between
what was in the treadmill PR (#13808) and what ultimately
got merged (#14127) which was obviously better (hey, I tried).
After a buildah vendor, there really isn't any point to keeping
the treadmill commits - we're much better off just restarting
with two fresh empty placeholder commits. Do so.
Also, mild cleanup.
Signed-off-by: Ed Santiago <santiago@redhat.com>