MAINTAINERS: Remove SPICE from Audio backends section

SPICE audio is already covered in the SPICE section,
so remove it from the Audio backends one.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20210816191014.2020783-3-philmd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
1 file changed