Revert "CHROMIUM: KVM: sched: Use KVM uclamp hypercall if available"

This reverts commit ee103fb5.

Reason: This feature will be replaced by another KVM DVFS Driver which
        gives better performance.

BUG=b:249685960
TEST=Build
UPSTREAM-TASK=b:256983979

Change-Id: I024f2626139556836ddf73a06d7dc32796cfdad5
Signed-off-by: Masami Hiramatsu <mhiramat@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/4236478


Reviewed-by: Suleiman Souhlal <suleiman@chromium.org>