That's a really good idea. I'm surprised nobody has done this yet. Perhaps there would be side effects? Maybe I should try manually deleting all the iPad images from an app to see what happens.
I'm sure there is a way through Terminal commands but I'm not familiar enough with them. I currently use this command to delete all other localizations aside from English.
I have a vague understanding of how those commands are working but not sure how to modify them to work for other files. Maybe someone else with experience can assist?