mgr/dashboard: Unset compression arguments for pools
The dashboard backend can now unset all set compression arguments if the
compression mode is switched to 'unset'. In the case of 'unset' Ceph
itself will only delete the 'compression_mode' argument, not all other
set arguments. The other arguments that should be removed, too, are
added to the update arguments in order to delete all set arguments.
Fixes: https://tracker.ceph.com/issues/36355 Signed-off-by: Stephan Müller <smueller@suse.com>