*: change C-style prototypes, drop "(void)"

src/input/Init.hxx

@@ -31,6 +31,7 @@ input_stream_global_init(Error &error);
 /**
  * Deinitializes this library and all #InputStream implementations.
  */
-void input_stream_global_finish(void);
+void
+input_stream_global_finish();
 
 #endif

src/input/InputPlugin.hxx

@@ -75,7 +75,7 @@ struct InputPlugin {
 	 * Global deinitialization.  Called once before MPD shuts
 	 * down (only if init() has returned true).
 	 */
-	void (*finish)(void);
+	void (*finish)();
 
 	InputStream *(*open)(const char *uri,
 			     Mutex &mutex, Cond &cond,