Found this thread while searching for ‘How to remove a device from dashboard’… The problem is probably the scrolling doesn’t work correctly. I was using Google chrome and couldn’t locate the ‘Remove Device’ button. After reading this thread, I just tried reducing size of the window (Control and Minus button or mouse scroll wheel) and then the button appeared.
So scrolling the window doesn’t actually show the content towards bottom of the tab.
Thought this would help someone.