Are they deleting the actual character? Or is the actor who voices them no longer going to do the voice ( presumably to be replaced by someone of the same ethnicity )?
Either way - it is getting really silly now. I have a friend who is a policeman in London and him & his colleagues are really afraid now of arresting anyone who is black. They were called out this week to a group of black youths "tagging" a train ( ie vandalising it ) but just decided not to bother and left them alone to get on with it. It is becoming a nightmare.