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/lcs.c b/drivers/s390/net/lcs.c
index 0abba93..f1dfc8d 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -2412,8 +2412,6 @@
 		.owner	= THIS_MODULE,
 		.name	= "lcs",
 	},
-	.max_slaves  = 2,
-	.driver_id   = 0xD3C3E2,
 	.setup	     = lcs_probe_device,
 	.remove      = lcs_remove_device,
 	.set_online  = lcs_new_device,
@@ -2429,8 +2427,7 @@
 				      const char *buf, size_t count)
 {
 	int err;
-	err = ccwgroup_create_dev(lcs_root_dev, lcs_group_driver.driver_id,
-				  &lcs_group_driver, 2, buf);
+	err = ccwgroup_create_dev(lcs_root_dev, &lcs_group_driver, 2, buf);
 	return err ? err : count;
 }
 static DRIVER_ATTR(group, 0200, NULL, lcs_driver_group_store);