Root User

A) you should not need to have root enabled.

B) have you looked at the Edit menu?

There are several ways to get temporary root privileges without enabling the root account (speaking as someone that used to be logged in as 'root' all the time from 1988 through 2004 on various Unix systems, and before that as 'SYSTEM' on VAX/VMS systems. I no longer do that and either use the Terminal 'sudo' command or I've got an ssh-keygen key in the root account's .ssh/authorized_keys file so I can securely ssh into the root account as needed (mostly for rsync backups over the network). But at no time is the root account password enabled on these systems.

Do a backup before doing anything. To delete them you will need to enable the Root User and log in as the Root User. You need to be very careful while logged in as the Root User because you can delete any file and could potentially ruin your system. As soon as the non-functioning applications are deleted, log out and use your normal account. Did I mention doing a backup?

Root User