LU-1133 tests: sanity-quota 33 fixes

LU-1133 tests: sanity-quota 33 fixes

sanity-quota test 33 must wait for removal completion
before verifying quota usage correctness

Signed-off-by: Andrew Perepechko <andrew_perepechko@xyratex.com>
Change-Id: Ia9994a41b734a19c0711c201c3b54a38480c33fd
Xyratex-bug-id: MRP-378
Reviewed-by: Alexander Zarochentsev <azarochentsev@xyratex.com>
Reviewed-on: http://review.whamcloud.com/2186
Tested-by: Hudson
Reviewed-by: Alexander Zarochentsev <alexander_zarochentsev@xyratex.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>