comctl32/tests: Remove variable res which is not really used from test_monthcal_size.

[Nikolay Sivov]

On 5/6/2010 02:11, Gerald Pfeifer wrote:
> Also in other places don't we check the result of SendMessage, and that's
> not really what we want to test here, either, from what I can tell.
>
>    

> -    res = SendMessage(hwnd, MCM_GETMINREQRECT, 0, (LPARAM)&r1);
> +    SendMessage(hwnd, MCM_GETMINREQRECT, 0, (LPARAM)&r1);
>
>    
Actually it won't hurt to test for it here.