x3daudio1_7: Remove unused debug channel.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/x3daudio1_7/main.c

@@ -15,6 +15,7 @@
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
+
 #include "config.h"
 #include <stdarg.h>
 
@@ -22,10 +23,6 @@
 #include "winbase.h"
 #include "x3daudio.h"
 
-#include "wine/debug.h"
-
-WINE_DEFAULT_DEBUG_CHANNEL(x3daudio);
-
 BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
 {
     switch (reason)