These were being called within the 'Instance' object. Remove them in their
entirety, given that nothing should be calling them now. They're pretty
closely coupled, hence removing the two of them at the same time. Note
that this removes a good chunk of functionality from cells v1 which turn
necessitates removing some more functional unit tests.
Part of blueprint remove-cells-v1
Change-Id: Ic89352a9900515484bffe961475feb1cefc6b2a9
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>