Fix a regression from 7c9cacd4, in which a ExcludeClipRect() call was removed by mistake.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52080Signed-off-by: Zhiyi Zhang <zzhang@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>