This was leaving behind registry entries (as well as the already accounted-for
program files), which apparently caused subsequent test failures when running
msi:action.

While Wine is not behaving exactly correctly here (i.e. and removing the feature
anyway), I suspect it is not sufficiently interesting to test whether we behave
correctly with what is essentially a buggy package.
Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>