Clean out unused pieces in `AddUserComponent`
Clean out unused pieces in `AddUserComponent`

There was a lot of cruft that accumulated in `AddUserComponent`, and
this cleans that up a bit.

UMM-CSci-3601/3601-lab4_mongo,UMM-CSci-3601/3601-lab4_mongo,UMM-CSci-3601/3601-lab4_mongo,UMM-CSci-3601/3601-lab4_mongo