I've used App Cleaner which clears preference and associated files, but I can't clear it from Location Services permissions list in System Preferences > Security & Privacy > Privacy.
Any idea how to remove it?
It took me a while to narrow down the file that contains the list of apps shown in that system pref pane, but I finally found. The list of apps is stored in
/var/db/locationd/clients.plist. Once I found that juicy bit of info a quick Google search revealed this related posting on superuser.com: Remove Applications from Location Services in Security & Privacy on Mac OS X 10.8. That post is more of an answer than a question. It contains detailed step-by-step instructions on how to remove the no longer installed app from the list.
Came here looking for the same answer. I tried checking the box next to the item and once it was checked it disappeared from the list, so yrmv...