[FIX] pos_restaurant: US tipping should not be set by default

In SaaS, the DB is pre-prepared with the generic chart of accounts before the
new user finishes the form. Since the default country of the generic chart of
accounts is the US, then `set_tip_after_payment` option in the pre-created
pos.config is set to True. Now, when the form is submitted, the country is
identified but the said option remains to be True. This is a problem because not
all customers are creating an odoo instance for a US company. So customers from
other countries will have the option activated by default which is not a good
default for them.

We introduced this behavior in aa1c5b53bf131c6df96ad621e00bd2ee3d44c6c0 and in
this commit we won't set the option by default anymore.

closes odoo/odoo#149542

Task-id: 3635635
Signed-off-by: Vlad Stroia (vlst) <vlst@odoo.com>

addons/pos_restaurant/models/pos_config.py

@@ -61,15 +61,6 @@ class PosConfig(models.Model):
         forbidden_keys.append('floor_ids')
         return forbidden_keys
 
-    def _set_tips_after_payment_if_country_custom(self):
-        self.ensure_one()
-        company = self.company_id or self.env.company or self.env['res.company']._get_main_company()
-        if company and company.country_id and company.country_id.code == 'US':
-            self.update({
-                'iface_tipproduct': True,
-                'set_tip_after_payment': True,
-            })
-
     @api.model_create_multi
     def create(self, vals_list):
         for vals in vals_list:
@@ -134,7 +125,6 @@ class PosConfig(models.Model):
 
     def _setup_main_restaurant_defaults(self):
         self.ensure_one()
-        self._set_tips_after_payment_if_country_custom()
         self._link_same_non_cash_payment_methods_if_exists('point_of_sale.pos_config_main')
         self._ensure_cash_payment_method('MRCSH', _('Cash Restaurant'))
         self._archive_shop()