RE: ddraw: Stop crash when dd7 isnt installed

[Stefan Dösinger]

> Changelog:
>   ddraw: Stop crash when dd7 isnt installed
> Do you really think it is worth polluting the code for this case? I haven't
> seen a windows box without dx7 since a LONG time. If you want to prevent a
> crash I think it is better to add some santiy checks at the beginning of the
> test and skip all the tests rather than polluting every test with lots and
> lots of possible error conditions coming from old dx versions