Revert "IKJB42MAIN-7323 msm: idle: fix race between cpuidle and cpu hotplug. Thanks to @SyNtheticNightmar3"

This reverts commit b9e2802467b46aca4947ca18f53857480e81e107.
alucard_hotplug: Use INIT_DELAYED_WORK for RQ_AVG calculation.