LU-4803 ofd: skip orphan cleanup when inject OI error

LU-4803 ofd: skip orphan cleanup when inject OI error

When inject OI error for simulating some failure cases, the object
may be mapped to invalid local target (inode for ldiskfs), so skip
the orphan cleanup in OSP to avoid unexpected warning or destroy.

Signed-off-by: Fan Yong <fan.yong@intel.com>
Change-Id: I8e0a8a9bb4ae584fc8f40f894a19e8f10aa24c10
Reviewed-on: http://review.whamcloud.com/9759
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>