Roles can be removed through Governance Meetings (or Asynchronous Proposals for Premium accounts). 

  • First open a Governance meeting and create an agenda item. Then, choose Add/Edit Role and select the role to be removed from the drop down menu:

  • At the bottom, check the "Remove this role" checkbox.

  • Once you have accepted the proposal, the role will be deleted.

Note: You might have to refresh your organization's chart page for the modifications to show.