remove migarte proprerty

configuration.py

@@ -38,24 +38,3 @@ class MemberSequence(ModelSQL, CompanyValueMixin):
                                           ('code', '=', 'association.member'),
                                       ],
                                       depends=['company'])
-
-    @classmethod
-    def __register__(cls, module_name):
-        TableHandler = backend.get('TableHandler')
-        exist = TableHandler.table_exist(cls._table)
-
-        super(MemberSequence, cls).__register__(module_name)
-
-        if not exist:
-            cls._migrate_property([], [], [])
-
-    @classmethod
-    def _migrate_property(cls, field_names, value_names, fields):
-        field_names.append('member_sequence')
-        value_names.append('member_sequence')
-        fields.append('company')
-        migrate_property('association.configuration',
-                         field_names,
-                         cls,
-                         value_names,
-                         fields=fields)