If you want to delete a role from the Identity Server "Roles" list, you can do so easily from the Management Console.
Follow the instructions below to delete a user's role.
1. Sign in. Enter your user name and password to log on to the Management Console as described here for Windows users and here for Linux users.
2. Click the "Configure" button to access the "Configure" menu.
3. In the "Configure" menu, select "Users and Roles."
4. Then click on the "Roles" link.
5. The "Roles" list opens. Locate a role in the list, and click on the "Delete" link associated with it.
6. A confirmation request message is displayed. Click "Yes."
Note
You cannot undo this operation once it is performed.
7. The user is deleted.