MySQL delete duplicate rows

deleteDuplicateRows.sql

DELIMITER $$
DROP PROCEDURE IF EXISTS `anchoDeleteDuplicate` $$
CREATE PROCEDURE `anchoDeleteDuplicate`()
BEGIN
DECLARE done BOOLEAN DEFAULT FALSE;
DECLARE uid integer;
DECLARE cWebFlotaRow cursor for
                                select wfr.internalid from WebFlotaRow wfr
                inner join WebFlotaRow wfr2
                on wfr.masterid = wfr2.masterid
                and wfr.rowNr = wfr2.rowNr
                and wfr.internalid > wfr2.internalid
                group by wfr.internalid;
DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET done = TRUE;
open cWebFlotaRow;
cWebFlotaRow_loop: LOOP
    fetch cWebFlotaRow into uid;
    IF done THEN LEAVE cWebFlotaRow_loop; END IF;
    set @deleteText = CONCAT("DELETE FROM WebFlotaRow WHERE internalid = ", uid,';');
    PREPARE stmt_name FROM @deleteText;
    EXECUTE stmt_name;
    DEALLOCATE PREPARE stmt_name;
END LOOP cWebFlotaRow_loop;
CLOSE cWebFlotaRow;
END $$
DELIMITER ;

CALL anchoDeleteDuplicate();