msm: thermal: Remove alarm support in KTM

Remove the alarm support from kernel thermal monitor(KTM).
Alternatively, the userspace processes uses POSIX timer
API's for alarm in msm-3.10 kernel.

CRs-Fixed: 538952
Change-Id: Ib57ebdef22c2d9f904b98287e5cf483fd3c7531f
Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>