rm useless login() overridden method

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@31454 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/tests/testProductionOrder.py

@@ -67,9 +67,6 @@ class TestProductionOrderMixin(TestOrderMixin):
     """
     return ('erp5_base','erp5_pdm', 'erp5_trade', 'erp5_mrp',)
 
-  def login(self, quiet=0, run=1):
-    ERP5TypeTestCase.login(self)
-
   def setUpPreferences(self):
     portal = self.getPortal()
     preferences = getToolByName(portal,'portal_preferences')