minor fix

case.py

@@ -20,24 +20,5 @@ class Case(metaclass=PoolMeta):
         'required': (Bool(Eval('required_attach'))),
     })
 
-    @classmethod
-    def import_data(cls, fields_names, data):
-        cont = 0
-        data_ = []
-        for row in data[1:]:
-            cases = cls.search([
-                ('name', '=', row[0])
-            ])
-            if not cases:
-                print('Case no found. ', row[0])
-                data_.append(row)
-                continue
-            case = cases[0]
-            cls.write([case], {'required_attach': True,
-                              'attach_description': row[2]
-                              })
-            print('registro actualizado --->', case.name)
-        return super(Case, cls).import_data(fields_names, data_)
-
     def get_rec_name(self, name):
         return self.name