code: public function deleteAclItem($aclId, $aclItemId)
      {
          $url = $this->_getApiServiceUri(). 'acl/'. $aclId . '/entry/' . $aclItemId;
          $result = $this->_fetch($url, \Zend_Http_Client::DELETE);
  
          return $result;
      }
docs: Delete single ACL entry from specific ACL
  
  @param $aclId
  @param $aclItemId
  @return bool|mixed
  @throws LocalizedException