- Duke: disabled sound limiting.

This does not work with how the game uses sounds. Unlike Doom the sound engine in DOS Duke has no channel limit so any sound can play as many times as the game deems fit.

source/games/duke/src/sounds.cpp

@@ -233,7 +233,7 @@ int S_DefineSound(unsigned index, const char *filename, int minpitch, int maxpit
 	sndinf[kVolAdjust] = clamp<int>(distance, INT16_MIN, INT16_MAX);
 	sndinf[kWorldTourMapping] = 0;
 	sfx->Volume = volume;
-	sfx->NearLimit = 6;
+	sfx->NearLimit = 0;
 	sfx->bTentative = false;
 	sfx->name = std::move(fn);
 	return 0;