Description of problem:

When an admin user edits their profile and removes the email address, clicking on submit results in a "can't be blank" error message. The same error occurs for non-admin users as well.

How reproducible:

Always

Is this issue a regression from an earlier version:

No regression stream(snap 60)

Steps to Reproduce:

1. Administer -> Users -> select admin

2. Remove email address and click on submit

3. It is mandatory field so it shows error "can't be blank"

Actual behavior:
When attempting to remove the email address, an error message stating 'can't be blank' is displayed. This indicates that the email address is a mandatory field. However, the asterisk symbol, which typically denotes mandatory fields, is not present.

Expected behavior:
The asterisk symbol should be used to indicate mandatory fields.

Business Impact / Additional info:

The same issue occurs for non-admin users.