On a mac, if you want teamviewer uninstalled, go to the Teamviewer folder and uninstall. Newer versions (Like 8, and now 9) of TeamViewer have an uninstaller inside it's Application folder. Go to your Applications folder, find the TeamViewer folder, open it, you should find the TeamViewer app itself, and also an uninstaller there. Run the uninstaller. Do not just trash the folder because it has services installed elsewhere.