Removed old PaymentCondition property sheet.

Invoice now have the TradeCondition property sheet which defines a
default payment condition.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@5727 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Invoice.py

@@ -55,7 +55,6 @@ class Invoice(AccountingTransaction):
                       , PropertySheet.Movement
                       , PropertySheet.Amount
                       , PropertySheet.Reference
-                      , PropertySheet.PaymentCondition
                       , PropertySheet.TradeCondition
                       , PropertySheet.ValueAddedTax
                       , PropertySheet.EcoTax