clockevents: Remove broadcast oneshot control leftovers

Now that all users are converted over to explicit calls into the
clockevents state machine, remove the notification chain leftovers.

Original-from: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/14018863.NQUzkFuafr@vostro.rjw.lan
Signed-off-by: Ingo Molnar <mingo@kernel.org>

include/linux/clockchips.h

@@ -11,8 +11,6 @@
 /* Clock event notification values */
 enum clock_event_nofitiers {
 	CLOCK_EVT_NOTIFY_ADD,
-	CLOCK_EVT_NOTIFY_BROADCAST_ENTER,
-	CLOCK_EVT_NOTIFY_BROADCAST_EXIT,
 	CLOCK_EVT_NOTIFY_CPU_DYING,
 	CLOCK_EVT_NOTIFY_CPU_DEAD,
 };

kernel/time/clockevents.c

@@ -655,13 +655,6 @@ int clockevents_notify(unsigned long reason, void *arg)
 	raw_spin_lock_irqsave(&clockevents_lock, flags);
 
 	switch (reason) {
-	case CLOCK_EVT_NOTIFY_BROADCAST_ENTER:
-		tick_broadcast_enter();
-		break;
-	case CLOCK_EVT_NOTIFY_BROADCAST_EXIT:
-		tick_broadcast_exit();
-		break;
-
 	case CLOCK_EVT_NOTIFY_CPU_DYING:
 		tick_handover_do_timer(arg);
 		break;