Clean up data headers

src/battle_controller_player_partner.c

@@ -8,7 +8,7 @@
 #include "battle_setup.h"
 #include "battle_tower.h"
 #include "bg.h"
-#include "data2.h"
+#include "data.h"
 #include "item_use.h"
 #include "link.h"
 #include "main.h"
@@ -27,9 +27,6 @@
 #include "constants/songs.h"
 #include "constants/trainers.h"
 
-extern const struct CompressedSpritePalette gTrainerFrontPicPaletteTable[];
-extern const struct CompressedSpritePalette gTrainerBackPicPaletteTable[];
-
 // this file's functions
 static void PlayerPartnerHandleGetMonData(void);
 static void PlayerPartnerHandleGetRawMonData(void);