MAINTAINERS: remove malc from audio

email bounces, with a appearently permanent error:
"av1474@comtv.ru mail receiving disabled, rejecting"
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NGonglei <arei.gonglei@huawei.com>

MAINTAINERS

@@ -770,7 +770,6 @@ F: hw/net/rocker/
 Subsystems
 ----------
 Audio
-M: Vassili Karpov (malc) <av1474@comtv.ru>
 M: Gerd Hoffmann <kraxel@redhat.com>
 S: Maintained
 F: audio/