Use transaction date for accounting date when importing AEB43 statement

Closes #12886
(grafted from 8ec4668ff251e147fdd80e25b65de4201811c5df)

--HG--
branch : 7.0

modules/account_statement_aeb43/statement.py

@@ -74,10 +74,7 @@ class ImportStatement(metaclass=PoolMeta):
         pool = Pool()
         Origin = pool.get('account.statement.origin')
         origin = Origin()
-        try:
-            origin.date = transaction.valueDate
-        except ValueError:
-            origin.date = transaction.transactionDate
+        origin.date = transaction.transactionDate
         origin.amount = transaction.amount
         descriptions = []
         for item in transaction.optionalItems: