Remove sys-power/cpupower from SDK

BUG=b/303317695
TEST=presubmit SDK build and local image build.
RELEASE_NOTE=None

Change-Id: I04bc9aa2bde384b2fdd69080bb498c1d666c04aa
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/chromiumos-overlay/+/71470
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
1 file changed