Remove uses of INVALID_ defines, clean up some arrays with constants, and spaces -> tabs

src/battle_gfx_sfx_util.c

@@ -122,7 +122,7 @@ void FreeBattleSpritesData(void)
 u16 ChooseMoveAndTargetInBattlePalace(void)
 {
     s32 i, var1, var2;
-    s32 chosenMoveId = INVALID_S32;
+    s32 chosenMoveId = -1;
     struct ChooseMoveStruct *moveInfo = (struct ChooseMoveStruct*)(&gBattleBufferA[gActiveBattler][4]);
     u8 unusableMovesBits = CheckMoveLimitations(gActiveBattler, 0, 0xFF);
     s32 percent = Random() % 100;