[PATCH] Remove sync_timers

Nobody's using it any more, kill:

include/linux/timer.h

@@ -25,10 +25,8 @@ extern int del_timer(struct timer_list * timer);
 
 #ifdef CONFIG_SMP
 extern int del_timer_sync(struct timer_list * timer);
-extern void sync_timers(void);
 #else
 #define del_timer_sync(t)	del_timer(t)
-#define sync_timers()		do { } while (0)
 #endif
 
 /*

kernel/timer.c

@@ -232,11 +232,6 @@ int del_timer(struct timer_list * timer)
 }
 
 #ifdef CONFIG_SMP
-void sync_timers(void)
-{
-	spin_unlock_wait(&global_bh_lock);
-}
-
 /*
  * SMP specific function to delete periodic timer.
  * Caller must disable by some means restarting the timer