Remove unused function as spotted by Alfred Chen.

-ck

---
 kernel/sched/bfs.c |    7 -------
 1 file changed, 7 deletions(-)

Index: linux-4.1.4-ck1/kernel/sched/bfs.c
===================================================================
--- linux-4.1.4-ck1.orig/kernel/sched/bfs.c	2015-08-06 09:38:39.367987643 +1000
+++ linux-4.1.4-ck1/kernel/sched/bfs.c	2015-08-07 08:55:31.705505159 +1000
@@ -978,13 +978,6 @@ static inline void deactivate_task(struc
 	clear_sticky(p);
 }
 
-static ATOMIC_NOTIFIER_HEAD(task_migration_notifier);
-
-void register_task_migration_notifier(struct notifier_block *n)
-{
-	atomic_notifier_chain_register(&task_migration_notifier, n);
-}
-
 #ifdef CONFIG_SMP
 void set_task_cpu(struct task_struct *p, unsigned int cpu)
 {