It's better not to have junction boxes at all if you can avoid it. They have to be accessible so you can see where they are to fault-find and tighten the screws.
That was why I originally suggested running a spur to the new position and leaving the old socket in place where it might be useful and no more unsightly than a blanked off box.
That was why I originally suggested running a spur to the new position and leaving the old socket in place where it might be useful and no more unsightly than a blanked off box.