Revert "hrtimer: reprogram remote CPU's timer hardware"

Revert commit 301bc715 ("hrtimer: reprogram remote CPU's timer
hardware") which caused power and performance regression by waking up
remote CPU unnecessarily.

CRs-fixed: 931853
Change-Id: I4c513395b20b2a007d9ea839c20ac558bfc8e932
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>