linux-phytec-ti

powerpc: Remove unused __get_user64() and __put_user64()

__get_user64()  and __put_user64() are not used.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>