payment_mean: address pylint messages and enable coding style test

bt5/erp5_payment_mean/SkinTemplateItem/portal_skins/erp5_payment_mean/PaymentTransaction_jumpToPaymentTransactionGroup.py

@@ -7,7 +7,6 @@ for line in context.getMovementList(
   related_object = line.getAggregateValue(portal_type=portal_type)
 
   if related_object is not None:
-    url = related_object.absolute_url()
     return related_object.Base_redirect('view', keep_items=dict(
       portal_status_message=translateString(
       # first, try to get a full translated message with portal types

bt5/erp5_payment_mean/bt/skip_coding_style_test

-1
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