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/lib/kobject.c b/lib/kobject.c
index 4b08e0f..0aa4e90 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -681,7 +681,7 @@
 
 	if (subsys_get(s)) {
 		error = sysfs_create_file(&s->kobj, &a->attr);
-		subsys_put(s);
+		kset_put(s);
 	}
 	return error;
 }