The system is Fedora 32. Mariadb was installed and operational; it is now necessary to reinitialize Mariadb and all data and users.
I removed mariadb-server and mariadb and erased /etc/my.cnf and my.cnf.d. I then reinstalled mariadb and mariadb-server and ran the mysql_secure_installation script. It found the original root password but otherwise completed normally.
I then logged into mariadb. I expected to find the users from the original installation had been removed; however they had not.
show databases; shows the original tables. They were not removed.
select * from mysql.user; showed the original users.
How can mariadb be completely removed including all users, data, and passwords?