Please dont remove the old menu. It's far better than the convuloted new menu, that's why most old players dont use the new menu..
Just lock the items you use most to the new menu? And use the search bar. Job done.
New features aren't available on the old menu and as time goes on, the old will become even more irrelevant and could even introduce bugs.
The new system took me approx 2 hours to get fully use to and I gotta admit, it's way better. Just gotta change the mind set.
Easy upvote
If you really want to remove the old menu, make sure that the console menu can have an option to center it while ensuring that you have an interface that is conveniently adapted, Like... i dont know.. Lost ark?