fix evil make clean for samples

assets/sound/Samples/Makefile

@@ -15,7 +15,7 @@ all: sample.a
 
 .PHONY: clean
 clean:
-	rm -f OBJ/*.o OBJ_DUMP/*.o sample.a S/*.s
+	rm -f WAV/*.o S_DUMP/*.o sample.a S/*.o
 
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