Core/Spells: Fix memory leak when Load() fails from spell/aura-scripts

src/server/game/Spells/Auras/SpellAuras.cpp

@@ -2068,6 +2068,7 @@ void Aura::LoadScripts()
         {
             std::list<AuraScript*>::iterator bitr = itr;
             ++itr;
+            delete (*bitr);
             m_loadedScripts.erase(bitr);
             continue;
         }

src/server/game/Spells/Spell.cpp

@@ -6946,6 +6946,7 @@ void Spell::LoadScripts()
         {
             std::list<SpellScript*>::iterator bitr = itr;
             ++itr;
+            delete (*bitr);
             m_loadedScripts.erase(bitr);
             continue;
         }