Calling the architected timer adds nontrivial overhead as observed in perf
top, especially since the DVFS functions are hot paths.
Remove all of the sched_clock() calls since they're unneeded by ACPM.
Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
Signed-off-by: Nahuel Gómez <nahuelgomez329@gmail.com>