def delete_role_perm(role_id, perm_id,**kwargs):
    """
        Remove a permission from a role
    """
    #check_perm(kwargs.get('user_id'), 'edit_perm')
    _get_perm(perm_id)
    _get_role(role_id)

    try:
        roleperm_i = db.DBSession.query(RolePerm).filter(RolePerm.role_id==role_id, RolePerm.perm_id==perm_id).one()
        db.DBSession.delete(roleperm_i)
    except NoResultFound:
        raise ResourceNotFoundError("Role Perm does not exist")

    return 'OK'
Remove a permission from a role