Revert "acpuclock-7x30: Added overclocking and undervolting support"

This reverts commit 421d6e919fcfb627f702c3a0f3ef216ff931f12f.

Change-Id: Ia0c4db8bd0b641bb280fb56d4a5ef62f1177ee46
Merge "Revert "acpuclock-7x30: Added overclocking and undervolting support"" into android-4.4