You can not remove that whitebox, it is used as an indicator that table/sessions stats mode is activated. To be able to differ HUD modes.
There has to be another way. Its one of those things that you can not have for the whole tourney
Fact: any good player will value current data 10 time more valuable than history data while making a deep run
edit: Removing the white outline is a must... The solution is placing the option in the H icon for other options in the Hud where you (disable popups). A check indicates which mode just like disabling popups
It really is that simple, cant believe it hasn't already been done