fix: Se elimina campo credit_note

invoice.py

@@ -9,9 +9,9 @@ from trytond.wizard import (
     StateAction, Wizard)
 from trytond.exceptions import UserError
 from trytond.transaction import Transaction
-# from facho.fe import form, form_xml
-# from facho import fe
-# from facho.fe.client import dian
+from facho.fe import form, form_xml
+from facho import fe
+from facho.fe.client import dian
 
 import io
 import qrcode
@@ -105,20 +105,13 @@ class Invoice(metaclass=PoolMeta):
             'readonly': (Eval('state') != 'draft')
         }, depends=['state'])
 
-    credit_note = fields.Boolean(
-        'Credit Note',
-        context={
-            'credit_note': Eval('credit_note'),
-        },
-        states={
-            'invisible': (Eval('fe_operation_type') == '10')
-        })
-
     del _states_readonly
 
     @classmethod
     def __setup__(cls):
         super(Invoice, cls).__setup__()
+        cls.credit_note.states['invisible'] = (
+            Eval('fe_operation_type') == '10')
         cls.payment_term.states['required'] = If(
             Bool(Eval('_parent_subtype.fe_document')), True)
         cls._buttons.update({

view/invoice_fe_colombia_form.xml

@@ -1,8 +1,6 @@
 <?xml version="1.0"?>
 <data>
     <xpath expr="//field[@name='subtype']" position="after">
-	<label name="credit_note"/>
-        <field name="credit_note"/>
 	<label name="fe_document"/>
         <field name="fe_document"/>
     </xpath>