It is necessary to leave in the registration form only the Email and phone fields, the login field should be removed, the user's login should be formed on the basis of his Email.
How can I implement user registration in Bitrix, so that when registering, the user does not fill out the login field in the registration form, and the login is based on Email? For example, if the user Email - max88@gmail.com then the login should be the same - max88@gmail.com