This reverts part of commit 30bc3c0933a1072e5e4c48b4614f5f387ffd8327.
On master, when upgrading from pike to queens in grenade, we already
create all the nodes with a resource class being set, so no need to
update it. We still pass the parameters to verify and verify_noapi as
that's what grenade does.
Change-Id: Ic7c3218fe95ef9f73d358216831158a1ec025fba
63f803c4a9