Removed obsolete methods
Removed obsolete methods

All these methods have been moved into appropriate TreeBuilder classes.
(transferred from ManageIQ/manageiq@fa1ca78dcaa0eaaa604d3d11eeedb694ae261058)

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