SAI/GameObject: Despawn the linked trap with the gameobject

Closes #23105

(cherry picked from commit 750be73b99)

src/server/game/Entities/GameObject/GameObject.cpp

@@ -1006,6 +1006,10 @@ void GameObject::DespawnOrUnsummon(Milliseconds delay, Seconds forceRespawnTime)
 
 void GameObject::Delete()
 {
+    // If nearby linked trap exists, despawn it
+    if (GameObject* linkedTrap = GetLinkedTrap())
+        linkedTrap->DespawnOrUnsummon();
+
     SetLootState(GO_NOT_READY);
     RemoveFromOwner();