Stevebauman\Inventory\Traits\InventoryTransactionTrait::removeAll PHP Method

    public function removeAll()
    {
        /*
         * Only allow the previous state of on hold
         */
        $this->validatePreviousState([$this::STATE_INVENTORY_ON_HOLD], $this::STATE_INVENTORY_REMOVED);
        $this->setAttribute('quantity', 0);
        $this->setAttribute('state', $this::STATE_INVENTORY_REMOVED);
        return $this->processSave('inventory.transaction.removed');
    }