080f25c5
 by Giovanni Mascellani   at 2024-10-10T20:00:19+02:00 
vkd3d-shader/ir: Do not search for signature elements using a scalar write mask.
The fallback code was added when shader_signature_find_element_for_reg()
would crash when unable to find the requested signature element.
Now it doesn't any more, and the second search is redundant.