Hi there,
I moved your post to the SDK subcategory, as this category is about modifying aircraft and other things.
If you do not receive a response here, you may also check out devsupport.flightsimulator.com. Anyone is allowed to create an account and ask questions there.
I’m pretty sure that item is part of the 3D model. You’d have to modify that and remove the component. I have no idea how or if it’s possible, though, I imagine since Black Square modified the cockpit, it may be possible? You’d probably have to build a new interior model and replace the existing one, since I think the Bonanza is part of the Deluxe package?