Remove auth-request deletion (#5184)

2FA is needed to login even when using login-with-device.
If the user didn't saved the 2FA token they still need to provide this.
We deleted the auth-request after validation the request, but before 2FA was triggered.

Removing the deletion of this record from that point as it will get cleaned-up automatically anyways.

Signed-off-by: BlackDex <black.dex@gmail.com>