Remove Party Language configuration

The Party language is now a property for which the default value is no more
managed by default method.
Also it is probably better to leave the field empty if user doesn't know than
having a default value set like that a choice can be done at run time.

issue5198
review20111002

configuration.py

@@ -13,6 +13,3 @@ class Configuration(ModelSingleton, ModelSQL, ModelView):
             'Party Sequence', domain=[
                 ('code', '=', 'party.party'),
                 ]))
-    party_lang = fields.Property(fields.Many2One("ir.lang", 'Party Language',
-        help=('The value set on this field will preset the language on new '
-            'parties')))

party.py

@@ -115,13 +115,6 @@ class Party(ModelSQL, ModelView):
                 'write_uid', 'write_date'))
         return [Address.default_get(fields_names)]
 
-    @staticmethod
-    def default_lang():
-        Configuration = Pool().get('party.configuration')
-        config = Configuration(1)
-        if config.party_lang:
-            return config.party_lang.id
-
     @staticmethod
     def default_code_readonly():
         Configuration = Pool().get('party.configuration')

view/configuration_form.xml

@@ -4,6 +4,4 @@ this repository contains the full copyright notices and license terms. -->
 <form string="Party Configuration">
     <label name="party_sequence"/>
     <field name="party_sequence"/>
-    <label name="party_lang" />
-    <field name="party_lang" widget="selection" />
 </form>