From your admin dashboard, head over to the App Builder, and navigate to the Membership section.
On the membership you don't want to be shown on your app, click on the 3 dots at the right end of the membership (next to duration) to reveal the different options.
Here, you'll be able to delete your membership by clicking Delete membership.
⚠️ You cannot delete a membership if one or more members are already subscribed to it. Instead, you'll need to hide the membership by clicking Hide membership.
Hiding the membership will remove it from your app entirely from all patients, but members that are still subscribed to it will still be able to manage their subscription from their profile section, like a regular member until they cancel.