Manage Space: Delete Role | Axero Documentation

To delete a space role:

1. From the space, click Manage Space > Roles.
2. For the role, click the delete icon.
3. Click OK.

Related

Manage Space: Delete People 

When you delete people from a public space, they will still be able to view the space and its public content. When you delete people from a private space, they won't be able to view the space and its content. When a person is deleted from a space, they'll assume the space's Guest role and inherit the Guest role's permissions.