Uninstall Symantec Enterprise Vault Client on Mac OS x

launchctl unload -D user /Library/LaunchAgents/com.symantec.ev.daemon.plist
sudo killall -m  "Enterprise Vault .*"
sudo rm -f /Library/LaunchAgents/com.symantec.ev.daemon.plist
sudo rm -rf "/Library/PreferencePanes/Enterprise Vault.prefPane"
sudo rm -rf "/Library/Application Support/Symantec Enterprise Vault"
rm -rf "~/Library/Application Support/Symantec Enterprise Vault"

http://webdiary.com/2011/12/21/ev-uninstall/