LU-8972 osp: skip subsequent orphan cleanups

LU-8972 osp: skip subsequent orphan cleanups

orphan cleanup should be done once, then we need to recreate
missing precreated objects (due to OST failures). otherwise
we risk to hit a deadlock (if we block creations during orphan
cleanup) or destroy objects being allocated (which results in
data corruptions).

Change-Id: Ie8bc301ae4463c170b0cf5fc5ddd52e41fa88638
Signed-off-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-on: https://review.whamcloud.com/25079
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: wangdi <di.wang@intel.com>
Reviewed-by: Fan Yong <fan.yong@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>