[FIX] account_check_printing: Print Checks

When clicking on button "Print Checks" on "account.payment", if the
check is not printed, the state of the "account.payment" doesn't have
to be change in state "Sent". Now the state is changed in function
do_print_checks which is overwritten in repository enterprise.

opw:725626

addons/account_check_printing/account_payment.py

@@ -101,7 +101,6 @@ class account_payment(models.Model):
             raise UserError(_("In order to print multiple checks at once, they must belong to the same bank journal."))
 
         self.filtered(lambda r: r.state == 'draft').post()
-        self.write({'state': 'sent'})
 
         if not self[0].journal_id.check_manual_sequencing:
             # The wizard asks for the number printed on the first pre-printed check