Comment 7 for bug 1799727

I was looking at https://github.com/openstack/nova/blob/835faf3f40af6b0e07c585690982a997d6a2ac47/nova/compute/provider_tree.py#L128 incorrectly, that will return True from has_inventory_changed if the keys are different, meaning we don't need to check the values, which is correct.