Функция для удаления евента триггера

library TriggerRegisterAnyUnitDamagedEvent initializer Init

    globals
        public     constant    trigger    TRIGGER          =    CreateTrigger()
        private    constant    trigger    TRIGGER_ADDER    =    CreateTrigger()
    endglobals

    private function TriggerAddEvent takes nothing returns boolean
        if not HaveSavedHandle(HASHTABLE, GetHandleId(GetFilterUnit()), StringHash("bla_bla")) then
            call SaveTriggerEventHandle(HASHTABLE, GetHandleId(GetFilterUnit()), StringHash("bla_bla"), TriggerRegisterUnitEvent(TRIGGER, GetFilterUnit(), EVENT_UNIT_DAMAGED))
        endif
        return false
    endfunction

    private function Init takes nothing returns nothing
        local group    g      =    CreateGroup()
        local rect     r      =    GetWorldBounds()
        local region   reg    =    CreateRegion()
        local boolexpr filter = Condition(function TriggerAddEvent)

        call GroupEnumUnitsInRect(g, r, filter)

        call RegionAddRect(reg, r)
        call TriggerRegisterEnterRegion(TRIGGER_ADDER, reg, filter)

        call DestroyGroup(g)
        call RemoveRect(r)
        set g   = null
        set r   = null
        set reg = null
    endfunction

    function TriggerRegisterAnyUnitDamagedEvent takes code c returns nothing
        call TriggerAddCondition(TRIGGER, Condition(c))
    endfunction

endlibrary