Core/Spells: Add a helper function to sort spell targets based on custom scripted sorting rules

src/server/scripts/Spells/spell_shaman.cpp

@@ -297,11 +297,6 @@ class spell_sha_ancestral_guidance : public AuraScript
 // 114911 - Ancestral Guidance Heal
 class spell_sha_ancestral_guidance_heal : public SpellScript
 {
-    bool Validate(SpellInfo const* /*spellInfo*/) override
-    {
-        return ValidateSpellInfo({ SPELL_SHAMAN_ANCESTRAL_GUIDANCE });
-    }
-
     static void ResizeTargets(SpellScript const&, std::list<WorldObject*>& targets)
     {
         Trinity::SelectRandomInjuredTargets(targets, 3, true);