Clean up ram vars

src/item_use.c

@@ -38,8 +38,6 @@
 #include "constants/songs.h"
 #include "constants/vars.h"
 
-extern void(*gUnknown_0203A0F4)(u8 taskId);
-extern void (*gUnknown_03006328)(u8, TaskFunc);
 extern void unknown_ItemMenu_Confirm(u8 taskId);
 extern void sub_81C5B14(u8 taskId);
 extern void ScriptUnfreezeEventObjects(void);
@@ -100,6 +98,9 @@ void sub_80FDBEC(void);
 bool8 sub_80FDE2C(void);
 void ItemUseOutOfBattle_CannotUse(u8 taskId);
 
+// EWRAM variables
+EWRAM_DATA static void(*gUnknown_0203A0F4)(u8 taskId) = NULL;
+
 // .rodata
 
 static const MainCallback gUnknown_085920D8[] =