LU-13719 lov: doesn't check lov_refcount

In lov_cleanup, the check of each OSC is protected by
lov_tgt_getrefs, which will increment the "lov_refcount",
so the "lov_refcount" shouldn't be checked inside because
it is always larger than 0.

Change-Id: I21423d4345190b3e02eb00734c127e35cbc9b1af
Signed-off-by: Hongchao Zhang <hongchao@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/39702


Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Lai Siyao <lai.siyao@whamcloud.com>
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/40452

lustre/lov/lov_obd.c

@@ -828,8 +828,7 @@ static int lov_cleanup(struct obd_device *obd)
 				continue;
 
 			/* Inactive targets may never have connected */
-			if (lov->lov_tgts[i]->ltd_active ||
-			    atomic_read(&lov->lov_refcount))
+			if (lov->lov_tgts[i]->ltd_active)
 				/* We should never get here - these
 				 * should have been removed in the
 				 * disconnect. */