MSM + INTELLI HOTPLUGS: Remove the CPU offline function from suspend.

*I have tested and i see that cores are going down any way on screen OFF.
and it's seems that there is a RACE if hotplug turn cores off, and something
was still using the core, i see log about no logger affine to cpu#
and that is not good, as app/service can stuck and brake something.

Any way there is no need to do this in HotPlug. other cpu code
already putting all cores to sleep.
partially imported commit: Partial Revert of MY HACK for ktime_get on suspend. + fix.
*I suspect that my HACK made some mess in suspend control.
and may have been responsible for SODS. on screen OFF.