This header is not used since commit abdbefba2a4e ("net: sun8i_emac: Use
consistent clock bitfield definitions"). Dropping it allows the driver
to be architecture-independent.
Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>