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>
diff --git a/MAINTAINERS b/MAINTAINERS
index 8fb35b0..282ad5a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2275,6 +2275,7 @@
 M: Gerd Hoffmann <kraxel@redhat.com>
 S: Odd Fixes
 F: audio/
+X: audio/spiceaudio.c
 F: qapi/audio.json
 
 Block layer core