kobject: Remove unused functions

kobj_ns_initial() and kobj_ns_netlink() were adde din 2010 by
commit bc451f2 ("kobj: Add basic infrastructure for dealing with
namespaces.")
but have remained unused.

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20250112144907.270272-1-linux@treblig.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/kobject_ns.h

@@ -52,8 +52,6 @@ const struct kobj_ns_type_operations *kobj_ns_ops(const struct kobject *kobj);
 
 bool kobj_ns_current_may_mount(enum kobj_ns_type type);
 void *kobj_ns_grab_current(enum kobj_ns_type type);
-const void *kobj_ns_netlink(enum kobj_ns_type type, struct sock *sk);
-const void *kobj_ns_initial(enum kobj_ns_type type);
 void kobj_ns_drop(enum kobj_ns_type type, void *ns);
 
 #endif /* _LINUX_KOBJECT_NS_H */

lib/kobject.c

@@ -1096,30 +1096,6 @@ void *kobj_ns_grab_current(enum kobj_ns_type type)
 }
 EXPORT_SYMBOL_GPL(kobj_ns_grab_current);
 
-const void *kobj_ns_netlink(enum kobj_ns_type type, struct sock *sk)
-{
-	const void *ns = NULL;
-
-	spin_lock(&kobj_ns_type_lock);
-	if (kobj_ns_type_is_valid(type) && kobj_ns_ops_tbl[type])
-		ns = kobj_ns_ops_tbl[type]->netlink_ns(sk);
-	spin_unlock(&kobj_ns_type_lock);
-
-	return ns;
-}
-
-const void *kobj_ns_initial(enum kobj_ns_type type)
-{
-	const void *ns = NULL;
-
-	spin_lock(&kobj_ns_type_lock);
-	if (kobj_ns_type_is_valid(type) && kobj_ns_ops_tbl[type])
-		ns = kobj_ns_ops_tbl[type]->initial_ns();
-	spin_unlock(&kobj_ns_type_lock);
-
-	return ns;
-}
-
 void kobj_ns_drop(enum kobj_ns_type type, void *ns)
 {
 	spin_lock(&kobj_ns_type_lock);