wineaudioio.drv: Exclude unused headers

[Andrew Talbot]

Changelog:
    wineaudioio.drv: Exclude unused headers.

diff -urN a/dlls/wineaudioio.drv/audio.c b/dlls/wineaudioio.drv/audio.c
--- a/dlls/wineaudioio.drv/audio.c	2007-03-12 13:30:50.000000000 +0000
+++ b/dlls/wineaudioio.drv/audio.c	2007-05-21 18:49:01.000000000 +0100
@@ -59,11 +59,9 @@
 #include "winbase.h"
 #include "wine/unicode.h"
 #include "wingdi.h"
-#include "winerror.h"
 #include "winuser.h"
 #include "mmddk.h"
 #include "dsound.h"
-#include "dsdriver.h"
 #include "wine/debug.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(wave);