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/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index abb84c3..84777e3 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1767,8 +1767,6 @@
 		.owner	= THIS_MODULE,
 		.name	= CTC_DRIVER_NAME,
 	},
-	.max_slaves  = 2,
-	.driver_id   = 0xC3E3C3D4,	/* CTCM */
 	.setup	     = ctcm_probe_device,
 	.remove      = ctcm_remove_device,
 	.set_online  = ctcm_new_device,
@@ -1783,8 +1781,7 @@
 {
 	int err;
 
-	err = ccwgroup_create_dev(ctcm_root_dev, ctcm_group_driver.driver_id,
-				  &ctcm_group_driver, 2, buf);
+	err = ccwgroup_create_dev(ctcm_root_dev, &ctcm_group_driver, 2, buf);
 	return err ? err : count;
 }
 static DRIVER_ATTR(group, 0200, NULL, ctcm_driver_group_store);