clockevents: Get rid of the notifier chain

7+ years and still a single user. Kill it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Link: http://lkml.kernel.org/r/20130425143436.098520211@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --cc include/linux/clockchips.h
Simple merge

diff --cc kernel/time/clockevents.c
Simple merge

diff --cc kernel/time/tick-broadcast.c
Simple merge

diff --cc kernel/time/tick-common.c
Simple merge

diff --cc kernel/time/tick-internal.h
Simple merge