comctl32/tests: Removed sign comparison warning in datetime tests.

[Joris Huizer]

On 10/05/2011 04:43 PM, Marko Nikolic wrote:
> static void test_mccolor_types(HWND hWndDateTime, int mccolor_type, const char* mccolor_name)
>   {
> -    LRESULT r;
> -    COLORREF theColor, prevColor;
> +    //LRESULT r;
> +    COLORREF theColor, prevColor, crColor;
>

Please avoid C++/C99-style comments in Wine code
In this case you should remove the 'r' variable instead of commenting it 
out.