Well, it looks like I'm stuck with it whether I like it or not. The app is not in the PreferencePanes folder and I don't have a StartupItems folder. I don't know where the app is to uninstall it.
"To completely remove the other FanControl software, follow these steps:
1. Remove the following files and folders (both on your start disk):
/Library/StartupItems/FanControlDaemon
/Library/PreferencePanes/Fan Control.prefPane
(You will be prompted for the Administrator’s password when deleting these items.)
2. Reboot"