modem-manager: remove unused byte counts in QMI/PDC update logic
modem-manager: remove unused byte counts in QMI/PDC update logic

fwupd/fwupd,fwupd/fwupd,hughsie/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd