Core/Vehicles: Remove redundant Vehicle::Die. All vehicle auras are already removed on Unit::RemoveAllAurasOnDeath.

Addresses ticket:869 - please reconfirm

src/server/game/Entities/Unit/Unit.cpp

@@ -12402,8 +12402,6 @@ void Unit::setDeathState(DeathState s)
         ClearDiminishings();
         GetMotionMaster()->Clear(false);
         GetMotionMaster()->MoveIdle();
-        if (m_vehicleKit)
-            m_vehicleKit->Die();
         SendMonsterStop(true);
         //without this when removing IncreaseMaxHealth aura player may stuck with 1 hp
         //do not why since in IncreaseMaxHealth currenthealth is checked