There are no users of this API anymore so let's just remove it.
If a need arises in the future we can extend the common clock API
to handle it.
Acked-by: NSaravana Kannan <skannan@codeaurora.org>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NDavid Brown <davidb@codeaurora.org>