Welcome to the Forum.
As long as you're working on the Bimmer this wknd I would say just go ahead & remove the LI's as they will do you no good against the latest DragonEye Lidars !!!
I've previously owned HP-905s & LI's & can say the above w/ certainty from personal experience.

You've made an excellent choice upgrading your Parking Sensors,...try to keep your spacing of Sensors within the recommended 18-22" separation that experience has demonstrated to provide the best protection.