The checks were ugly and unnecessary. Furthermore, these functions are
used for both IPv4 and IPv6 options, and it's conceivable that a system
could be stripped down to only provide IPv6 support and not IPv4
support.
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>