[PATCH] quartz: Don't cast from COM object to interface

[Zebediah Figura]

On 09/02/2019 05:18 AM, Michael Stefaniuc wrote:
> Signed-off-by: Michael Stefaniuc <mstefani at winehq.org>
> ---
> The second cast should go too but that requires exposing
> struct QualityControlImpl in include/wine/strmbase.h .

Which is fine in principle, though as it happens it's incorrect that
there's any quality management done in dsoundrender in the first place.