No; it seems these just weren't removed when no longer needed.
The way Loremaster works was changed in the EE. For some time during development it was possible to switch between keyboard and controller UIs in-game, but this caused problems in certain circumstances, and the ability to switch modes was restricted to the main menu. I'm not sure what the equipment and stats toggles were for... perhaps early versions of the UI while the controller interface was being worked out.