Fix minor thinks in lots of tests. Mainly compatibility problems with new version docker

Important commit https://github.com/jzupka/autotest-docker/commit/0cb718dc5fbb30f6cd902ff88224561d6c73a1c0 fixes problem with generator of names.
As near as I can tell, this subcommand isn't supported at all now.  My change is just to delete this test completely :)  Is there a reason we should keep it?  The insert functionality is basically duplicated by the ``build`` command I guess is why they got rid of it.