Revert "msm: krait: add CPU Voltage control."

This reverts commit 86516ee2fe35ea60164a89a93f5721550c2b21a9.

Change-Id: I156de8351f89d807a0fb68f815879b4b2d26355f
Revert "msm: acpuclock-krait: Disable vdd core boost"

This reverts commit aade74501be727bc9ccc6390a9cb3f0d842aa7ef.

Change-Id: I009d36958f171b93ec79c2b00c23240495d78bba