shrink preonic by a bit

keyboards/preonic/keymaps/default/config.h

@@ -1,10 +1,10 @@
 #ifndef CONFIG_USER_H
 #define CONFIG_USER_H
 
-#include "../../config.h"
+#include "config_common.h"
 
 #ifdef AUDIO_ENABLE
-    #define STARTUP_SONG SONG(PLANCK_SOUND)
+    #define STARTUP_SONG SONG(PREONIC_SOUND)
     // #define STARTUP_SONG SONG(NO_SOUND)
 
     #define DEFAULT_LAYER_SONGS { SONG(QWERTY_SOUND), \

keyboards/preonic/keymaps/default/rules.mk

@@ -1,3 +0,0 @@
-ifndef QUANTUM_DIR
-	include ../../../../Makefile
-endif