LU-9485 test: revert a change from LU-5361

LU-9485 test: revert a change from LU-5361

Revert the changes from patch 5c315184152 in test-framework.sh
that caused wait_osc_import_state() not working.

Test-Parameters: trivial \
mdtfilesystemtype=zfs ostfilesystemtype=zfs \
testlist=conf-sanity,conf-sanity,conf-sanity

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Change-Id: Ic20d5d7fa7344383d5999aa2684b736e64309ebb
Reviewed-on: https://review.whamcloud.com/27148
Tested-by: Jenkins
Reviewed-by: Jian Yu <jian.yu@intel.com>
Reviewed-by: James Nunez <james.a.nunez@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>