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

[Gerald Pfeifer]

On Thu, 6 May 2010, Nikolay Sivov wrote:
>> -    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.

Okay.  I am currently testing a patch that does exactly that in both
cases.  Thanks for the constructive feedback!

Gerald