This requires fixes found in cliff 3.5.0 [1] and osc-lib 2.3.0 [2]. With
these fixes in place, we can remove the icky, still broken
'assertItemEqual' and 'assertListItemEqual' helpers.
[1] https://review.opendev.org/761421
[2] https://review.opendev.org/761394
Change-Id: Id6c26b37c3c7d5ec6761361abca57f9219b76838
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>