Kobject: remove kobject_unregister() as no one uses it anymore

There are no in-kernel users of kobject_unregister() so it should be
removed.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

include/linux/kobject.h

@@ -101,8 +101,6 @@ extern struct kobject * __must_check kobject_create_and_add(const char *name,
 extern int __must_check kobject_rename(struct kobject *, const char *new_name);
 extern int __must_check kobject_move(struct kobject *, struct kobject *);
 
-extern void kobject_unregister(struct kobject *);
-
 extern struct kobject * kobject_get(struct kobject *);
 extern void kobject_put(struct kobject *);
 

lib/kobject.c

@@ -532,22 +532,6 @@ void kobject_del(struct kobject * kobj)
 	kobj->parent = NULL;
 }
 
-/**
- *	kobject_unregister - remove object from hierarchy and decrement refcount.
- *	@kobj:	object going away.
- */
-
-void kobject_unregister(struct kobject * kobj)
-{
-	if (!kobj)
-		return;
-	pr_debug("kobject: '%s' (%p): %s\n",
-		 kobject_name(kobj), kobj, __FUNCTION__);
-	kobject_uevent(kobj, KOBJ_REMOVE);
-	kobject_del(kobj);
-	kobject_put(kobj);
-}
-
 /**
  *	kobject_get - increment refcount for object.
  *	@kobj:	object.
@@ -877,7 +861,6 @@ struct kset *kset_create_and_add(const char *name,
 }
 EXPORT_SYMBOL_GPL(kset_create_and_add);
 
-EXPORT_SYMBOL(kobject_unregister);
 EXPORT_SYMBOL(kobject_get);
 EXPORT_SYMBOL(kobject_put);
 EXPORT_SYMBOL(kobject_del);