setupapi/tests: Remove an unneeded cast.

[Hans Leidekker]

On Thursday 08 January 2009 11:22:59 Alexandre Julliard wrote:

> > This test is there to show that the prototype of StringTableLookUpStringEx
> > is broken; the last parameter is treated as an integer instead of a pointer
> > and this notation serves to document that fact. But I can see how this will
> > repeatedly trigger janitorial scripts, so I do not object to this patch
> > going in.
> 
> Where does the prototype come from?  AFAICS it's not in the PSDK. Maybe
> it's just wrong.

I don't know where the prototype came from, there was a stub there already
which entered Wine with commit 8196e2d0d0dbd04325201e14d95f88cad3cfd00f.

So we might as well change the prototype, given its demonstrated behavior.

 -Hans