docs: def delete_role(name, region=None, key=None, keyid=None, profile=None):
      '''
      Delete an IAM role.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt myminion boto_iam.delete_role myirole
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
  
      if not role_exists(name, region, key, keyid, profile):
          return True
      try:
          conn.delete_role(name)
          log.info('Deleted %s IAM role.', name)
          return True
      except boto.exception.BotoServerError as e:
          log.debug(e)
          log.error('Failed to delete %s IAM role.', name)
          return False