Do not define it for the vkd3d build, but restore support for overriding it as a
configure argument.
This partially reverts 99a3adcc19f2a64fad630948851616f52c00d553.
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52915
Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>