Simplify weirdly matching division/substraction code

src/battle_anim_effects_2.c

@@ -3673,7 +3673,6 @@ static void AnimTask_UproarDistortion_Step(u8 taskId)
 
 static void AnimJaggedMusicNote(struct Sprite *sprite)
 {
-    int var1;
     u8 battler = !gBattleAnimArgs[0] ? gBattleAnimAttacker : gBattleAnimTarget;
 
     if (GetBattlerSide(battler) == B_SIDE_OPPONENT)
@@ -3684,16 +3683,8 @@ static void AnimJaggedMusicNote(struct Sprite *sprite)
     sprite->data[0] = 0;
     sprite->data[1] = (u16)sprite->x << 3;
     sprite->data[2] = (u16)sprite->y << 3;
-
-    var1 = gBattleAnimArgs[1] << 3;
-    if (var1 < 0)
-        var1 += 7;
-    sprite->data[3] = var1 >> 3;
-
-    var1 = gBattleAnimArgs[2] << 3;
-    if (var1 < 0)
-        var1 += 7;
-    sprite->data[4] = var1 >> 3;
+    sprite->data[3] = (gBattleAnimArgs[1] << 3) / 8;
+    sprite->data[4] = (gBattleAnimArgs[2] << 3) / 8;
 
     sprite->oam.tileNum += gBattleAnimArgs[3] * 16;
     sprite->callback = AnimJaggedMusicNote_Step;