Revert "fix sprite side on attack"

This reverts commit 59f122703302eedf5065110c4e22403eaee0242e.

lib/spellbook.lua

@@ -124,10 +124,6 @@ function attack:cast(caster, target)
     local targetSprite = targetCharacter:has(Tree.behaviors.sprite)
     if not sprite or not targetSprite then return true end
 
-    if sprite.side == targetSprite.side then
-        sprite.side = -sprite.side
-    end
-
     AnimationNode {
         onEnd = function() caster:has(Tree.behaviors.spellcaster):endCast() end,
         children = {