LU-5823 clio: remove IOC_LOV_GETINFO

LU-5823 clio: remove IOC_LOV_GETINFO

* In cb_find_init() (lfs find) use some variant of stat() to get file
  size and times.
* Remove the then unused IOC_LOV_GETINFO ioctl.
* Remove ll_glimpse_ioctl() and ll_lsm_getattr().
* Remove the OBD API method obd_getattr_async().

Signed-off-by: Bobi Jam <bobijam.xu@intel.com>
Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: I8fb6b69b1c94f0522a1405f1105ab0b7a2041601
Reviewed-on: http://review.whamcloud.com/12748
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>