This partly reverts commit f7f7b89e
(tests are left in place).

Any application that currently uses "Microsoft.Windows.Common-Controls
v6" via a Manifest has the possibility of breaking comboboxes. Using
this version of the control ensures that dropdown for comboboxes, will
show multiple items, regardless of its height in the resource.
Signed-off-by: Alistair Leslie-Hughes <leslie_alistair@hotmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>