Lots of code cleanup (#32)

### Description
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### Will this Pull Request break anything? 
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src/spc_player.c

@@ -1785,4 +1785,4 @@ void RunAudioPlayer(void) {
     }
   }
 }
-#endif  // WITH_SPC_PLAYER_DEBUGGING
+#endif  // WITH_SPC_PLAYER_DEBUGGING