missing_user_features now lives in the User model
missing_user_features now lives in the User model

This depends on ManageIQ/manageiq#15779 getting merged.

Moving this outside of the ui-classic allows the rest api to run from a
web service worker (or rails server) without the ui-classic code at all.

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic