Can [Update Needed] be removed without disabling/enabling FileVault?

I have an additional user [Update Needed] appear on login screen at every boot, which doesn't affect usability but a bit annoying. I googled for solution, but all of them are just disabling and enabling FileVault again. That would be time-consuming, somewhat harmful to the SSD, and would leave bits of sensitive data unencrypted on the disk. Is there any other way? Like some terminal commands?