[REV] point_of_sale: allow multiple cash payment methods in PoS

We are reverting this commit (f9da3590261b304f9c12f01f5800cec50faebc1a) because
it is not compliant to the stable policy and is blocking users that had more than one cash
payment methods in configuring their pos.

opw-3331677

closes odoo/odoo#122882

X-original-commit: 81d995cf5450956e1c664cb5528d98bb9849bb64
Signed-off-by: Joseph Caburnay (jcb) <jcb@odoo.com>
Signed-off-by: Pedram Bi Ria (pebr) <pebr@odoo.com>

addons/point_of_sale/i18n/point_of_sale.pot

@@ -7379,13 +7379,6 @@ msgstr ""
 msgid "You can go to"
 msgstr ""
 
-#. module: point_of_sale
-#. odoo-python
-#: code:addons/point_of_sale/models/pos_config.py:0
-#, python-format
-msgid "You can only have one cash payment method."
-msgstr ""
-
 #. module: point_of_sale
 #. odoo-python
 #: code:addons/point_of_sale/models/pos_order.py:0

addons/point_of_sale/models/pos_config.py

@@ -172,13 +172,6 @@ class PosConfig(models.Model):
         for config in self:
             config.cash_control = bool(config.payment_method_ids.filtered('is_cash_count'))
 
-    @api.onchange('payment_method_ids')
-    def _check_cash_payment_method(self):
-        for config in self:
-            if len(config.payment_method_ids.filtered('is_cash_count')) > 1:
-                config.payment_method_ids = config.payment_method_ids._origin
-                raise ValidationError(_('You can only have one cash payment method.'))
-
     @api.depends('company_id')
     def _compute_company_has_template(self):
         for config in self: