macOS 10.13.X shows Disk Password Login at Boot Time

After a clean install of OSX 10.13.X using Encrypted ADFS, Disk Password login and User login are shown at boot time.  In the past I installed OSX without encrypting the drive and once done used FireVault to enable encryption and that avoided the extra login.  To remove the HDD logon or any other additional user here is the process:

Using FileVault CLI tool list the current users that can unlock the drive: 
sudo fdesetup list -extended

Sample Output:
ESCROW  UUID                                        TYPE USER
A1A1A11A-AAAB-11AA-BBBB-AABB11223344                Unknown User
1A1B1C00-BBBC-22BB-CCCC-AACC55667788                OS User theblogger

Remove the Unknown User:
sudo fdesetup remove -uuid A1A1A11A-AAAB-11AA-BBBB-AABB11223344