My site doesn’t need the Secondary Roles feature. In order to avoid confusion and mistakes by the site moderators I’d like to remove the Secondary Roles options from user-edit.php. Can you either add this as a setting, or at least add an id/class to the HTML thats being put out on user-edit.php (preferably added to table.form-table) so I can hide it with CSS?

Thanks,
Ran

ps. I found 2 others with the same request:
https://wordpress.org/support/topic/how-can-i-remove-secondary-roles-block?replies=1
http://stackoverflow.com/questions/31337637/how-to-hide-or-remove-secondary-roles-block-in-wp-front-user-role-editor-when-ed