Piwik\Plugins\Referrers\API::removeSubtableIds PHP Method

    private function removeSubtableIds($table)
    {
        if ($table instanceof DataTable\Map) {
            foreach ($table->getDataTables() as $childTable) {
                $this->removeSubtableIds($childTable);
            }
        } else {
            foreach ($table->getRows() as $row) {
                $row->removeSubtable();
            }
        }
        return $table;
    }