function remove($dbs)
 {
     echo "Remove Duplicate Row\n\n";
     $db = new Database();
     $conn = $db->connectDatabase();
     foreach ($dbs as $dbname) {
         $db->selectDatabase($conn, $dbname);
         $db->createTmpTable($conn, "products");
         $db->insertIntoTmp($conn, "products");
         $db->dropTable($conn, "products");
         $db->renameTable($conn, "products");
         echo $dbname . "\n";
     }
 }