Go into Settings > General > Usage > Manage Storage and there should be an option to delete the update.Here's a question, I enrolled with the iOS beta (and have the feedback app now) I then went to software update and it appears to have downloaded the beta, however when I hit install I get an error message (unable to install), so now I have a notification badge on my update but can't seem to install..... If I can never get it to install will the next iOS update just override it or do I have to find a way to remove it?