LU-9355 obd: remove obsolete OBD_FL_LOCAL_MASK

LU-9355 obd: remove obsolete OBD_FL_LOCAL_MASK

From Andreas Dilger:

The OBD_FL_LOCAL_MASK support has not been used since
commit e62f0a3c5b9 b=21980 cache ll_obdo_cache: Can't free all
objects which predates Jira. With the landing of patch
https://review.whamcloud.com/26463
LU-4017 quota: add project inherit attributes the handling of the "local"
flags is broken and since it is unused it is better to be removed entirely.

Change-Id: Iebd3de73f78f72851c5a664e72fa3d145729e1d6
Signed-off-by: Wang Shilong <wshilong@ddn.com>
Reviewed-on: https://review.whamcloud.com/26728
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>