why would you want to remove that feature? i mean, you can probably remove the button to be out of sight easily. if it does nothing when you're not using it, what's the deal?
Funnily enough the platform also provides a screenshot system. From another comment it seems like this was driven mostly by user feedback from Windows users, because the ~3 different ways of doing a print screen on Windows are not sufficient and they demand more.
Btw. the screenshot tool of Windows can't capture a webpage properly, only the visible area.
Does your screenshot tool let you capture whole webpages, or just what's in the viewport at the current moment?
Link to the UI bug? Sometimes things fall between the cracks.