Deleting User Role
Follow the steps below to delete a user role:
Go to Settings > General > Users and Roles.
On the Users and Roles page, switch to the Roles tab.
Hover over the user role, click the Ellipsis icon in the rightmost column of the row and then click Delete.
In the dialog box that opens, click Delete to confirm deletion of the local user.
The user role disappears from the list of roles.