phpmyadmin which users can I delete?

I have a fresh install of phpmyadmin on my vpn server. It has some users on it that my cpanel did not. Which of these can I safely delete please?

User    Host    Password    Global privileg开发者_StackOverflow中文版es 1     Grant   Action  
debian-sys-maintlocalhostYes    ALL PRIVILEGES  Yes     Edit Privileges
phpmyadmin  localhost   Yes     USAGE           No      Edit Privileges
root        127.0.0.1   Yes     ALL PRIVILEGES  Yes     Edit Privileges
root        localhost   Yes     ALL PRIVILEGES  Yes     Edit Privileges
root        tomtgg      Yes     ALL PRIVILEGES  Yes     Edit Privileges

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Suspect this will soon be bumped to serverfault.com real-soon-now™, but...

• debian-sys-maint - Don't delete it, it's important: https://serverfault.com/questions/9948/what-is-the-debian-sys-maint-mysql-user-and-more

• phpmyadmin - Used for phpMyAdmin. If you delete it, you'll break phpMyAdmin

• root (x3) - These are just different hostname access rights for the root user. (I presume "tomtgg" is your hostname.) In essence, all of the entries are there to ensure that the root user has local access under a variety of conditions.

In short, you shouldn't delete any of these.