This is my Geforce 9600 setup here, the failure doesn't occur on all
windows 7 systems. I don't think we can change wined3d's behavior as a
number of games are broken on my Windows installation because they do
not like the extra parameter validation.

Translation by Claudia Cotună, reviewed by Alexandru Băluț.

This reverts commit 6018b889. It
breaks several apps. To be revisited after 1.2.

Newer nvidia drivers return garbage when using a COUNTx where x is bigger
than the amount of coordinates the texture can consume. So stick to COUNT3 for
volume textures. The tests don't need COUNT4 anyway.