Bank transfer: Hide email form if email was already sent (Z#23128941) (#3570)

Co-authored-by: Mira <weller@rami.io>

src/pretix/plugins/banktransfer/payment.py

@@ -530,6 +530,7 @@ class BankTransfer(BasePaymentProvider):
             'code': self._code(payment.order),
             'order': payment.order,
             'amount': payment.amount,
+            'payment_info': payment.info_data,
             'settings': self.settings,
             'swiss_qrbill': self.swiss_qrbill(payment),
             'eu_barcodes': self.event.currency == 'EUR',