Driver core: remove subsys_put()

There are no more subsystems, it's a kset now so remove the function and
the only two users, which are in the driver core.


Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 625f7e6..2f77593 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -734,7 +734,7 @@
 
 void put_bus(struct bus_type * bus)
 {
-	subsys_put(&bus->subsys);
+	kset_put(&bus->subsys);
 }