Clean up ram vars

src/dragon.c

@@ -5,8 +5,6 @@
 #include "trig.h"
 #include "constants/rgb.h"
 
-extern u16 gUnknown_0203A100[];
-
 void sub_8113064(struct Sprite *);
 void sub_81131B4(struct Sprite *);
 void sub_8113224(struct Sprite *);
@@ -17,6 +15,8 @@ static void sub_81134B8(u8);
 static void sub_8113574(struct Task *);
 static void sub_811369C(struct Sprite *);
 
+EWRAM_DATA static u16 gUnknown_0203A100[7] = {0};
+
 const union AnimCmd gUnknown_08596E60[] =
 {
     ANIMCMD_FRAME(0, 4),