After upgrading to Debian Stretch phpmyadmin no longer give me the option in the User accounts tab to delete database users. Mariadb and phpmyadmin was installed with standard Debian packages and I access phpmyadmin with and administrative user that I think received the necessary privileges. The only option available is export which I hereby use:
GRANT ALL PRIVILEGES ON . TO 'admuser'@'%' IDENTIFIED BY PASSWORD '*my_password_hash' WITH GRANT OPTION;
Did something change in phpmyadmin, no longer showing or allowing this? Is there another privilege or mariadb setting that I should change?