s390/ccwgroup: remove ccwgroup_create_from_string

Remove the old ccwgroup_create_from_string interface since all
drivers have been converted to ccwgroup_create_dev. Also remove
now unused members of ccwgroup_driver.

Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index f7e7dcd..634c7e8 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -262,12 +262,10 @@
 		.owner	= THIS_MODULE,
 		.name	= "claw",
 	},
-        .max_slaves  = 2,
-        .driver_id   = 0xC3D3C1E6,
 	.setup	     = claw_probe,
-        .remove      = claw_remove_device,
-        .set_online  = claw_new_device,
-        .set_offline = claw_shutdown_device,
+	.remove      = claw_remove_device,
+	.set_online  = claw_new_device,
+	.set_offline = claw_shutdown_device,
 	.prepare     = claw_pm_prepare,
 };
 
@@ -292,8 +290,7 @@
 				       const char *buf,	size_t count)
 {
 	int err;
-	err = ccwgroup_create_dev(claw_root_dev, claw_group_driver.driver_id,
-				  &claw_group_driver, 2, buf);
+	err = ccwgroup_create_dev(claw_root_dev, &claw_group_driver, 2, buf);
 	return err ? err : count;
 }
 static DRIVER_ATTR(group, 0200, NULL, claw_driver_group_store);