Merge pull request #37 from rdoppeltplus/patch-1

Update Item.php

Author: sabas

src/Generator/Invoic/Item.php

@@ -120,7 +120,6 @@ public function addDiscount($value, $discountType = self::DISCOUNT_TYPE_PERCENT)
         $index = 'discount' . $this->discountIndex++;
         $this->{$index} = [
             'ALC',
-            '',
             floatval($value) > 0 ? 'C' : 'A',
             '',
             '',