Board Thread:Questions and Answers/@comment-2602:306:8371:80A0:89E:6C35:8500:DDB6-20170911220513/@comment-6723989-20170912071750

Tap on a sim and you will see a red circle with a line through it next to their name. Tap on the circle and it will say whether you want to remove them or not. Tap 'yes' and the sim will be deleted.