The swift and cinder hosts do not use containers for services,
so there is no need to do the current process of shrinking the
volumes. Instead, we ensure that the lxc & machines mounts are
removed, with their respective logical volumes.
When setting up the swift logical volumes, we do not need to
create the mount point directories, because the mount task will
do that for us. As such, we remove that task.
Change-Id: Ibbe6d0fede6b6965415e421161354e311708d113
0e8423d536