Revert half of "ANDROID: vendor_hooks: Add param for android_vh_cpu_up/down"

This reverts half of commit 496b1730.

This hook is not used, so the param is not needed at all.  Step on the
way to remove the hook entirely.

Bug: 203756332
Bug: 203492840
Cc: Liujie Xie <xieliujie@oppo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I84c021f1139e0bbadc3573211a8ee8a24273f5e9