Core/AI: Remove code that removed UNIT_DYNFLAG_LOOTABLE from possessed units (#25229)

* Core/AI: Remove code that removed UNIT_DYNFLAG_LOOTABLE from possessed units

* Update PassiveAI.cpp

Restored logic that removes loot flag while being possessed

* Restored logic that removes loot flag while being possessed

(cherry picked from commit 298d7994850dfc777c56a7672042d78074b67f3d)

src/server/game/AI/CoreAI/PassiveAI.cpp

@@ -73,13 +73,6 @@ void PossessedAI::JustDied(Unit* /*u*/)
     me->RemoveDynamicFlag(UNIT_DYNFLAG_LOOTABLE);
 }
 
-void PossessedAI::KilledUnit(Unit* victim)
-{
-    // We killed a creature, disable victim's loot
-    if (victim->GetTypeId() == TYPEID_UNIT)
-        me->RemoveDynamicFlag(UNIT_DYNFLAG_LOOTABLE);
-}
-
 void CritterAI::JustEngagedWith(Unit* /*who*/)
 {
     if (!me->HasUnitState(UNIT_STATE_FLEEING))

src/server/game/AI/CoreAI/PassiveAI.h

@@ -46,7 +46,6 @@ class TC_GAME_API PossessedAI : public CreatureAI
         void EnterEvadeMode(EvadeReason /*why*/) override { }
 
         void JustDied(Unit*) override;
-        void KilledUnit(Unit* victim) override;
 
         static int32 Permissible(Creature const* /*creature*/) { return PERMIT_BASE_NO; }
 };