This story tracks the removal of the nova-local lvm backend for compute
hosts. The lvm backend is no longer required; nova-local storage will
continue to support settings of "image" or "remote" backends.
This story will remove custom code related to lvm nova-local storage:
- nova-clean-thinpool service and init script is removed
DocImpact
Story: 2004427
Task: 28085
Depends-On: https://review.openstack.org/620179
Change-Id: I28469730f959e000d39e46d13f4c68c2e967153b
Signed-off-by: Jim Gauld <james.gauld@windriver.com>