hwmon: (pmbus) Simplify remove functions

Since devm_kzalloc() is now used to allocate driver memory, the client
driver remove function has no purpose other than to call pmbus_do_remove().
This means we can get rid of it by redefining pmbus_do_remove() to use the
same prototype, and pointing to it directly.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
diff --git a/drivers/hwmon/pmbus/ucd9200.c b/drivers/hwmon/pmbus/ucd9200.c
index c0d41b99..033d6ac 100644
--- a/drivers/hwmon/pmbus/ucd9200.c
+++ b/drivers/hwmon/pmbus/ucd9200.c
@@ -163,20 +163,13 @@
 	return pmbus_do_probe(client, mid, info);
 }
 
-static int ucd9200_remove(struct i2c_client *client)
-{
-	pmbus_do_remove(client);
-	return 0;
-}
-
-
 /* This is the driver that will be inserted */
 static struct i2c_driver ucd9200_driver = {
 	.driver = {
 		.name = "ucd9200",
 	},
 	.probe = ucd9200_probe,
-	.remove = ucd9200_remove,
+	.remove = pmbus_do_remove,
 	.id_table = ucd9200_id,
 };