Removed test for "driver is valid, but doesn't see any audio devices."

It was causing problems, and it really doesn't make sense to do it that way.

  Fixes Bugzilla #834.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%404455

src/audio/bsd/SDL_bsdaudio.c

@@ -444,7 +444,8 @@ BSDAUDIO_Init(SDL_AudioDriverImpl * impl)
     impl->Deinitialize = BSDAUDIO_Deinitialize;
 
     build_device_lists();
-    return (outputDeviceCount > 0) ? 2 : 1;
+
+    return 1;   /* this audio target is available. */
 }