sudo rm -r /Applications/Utilities/XQuartz.app
sudo rm /Library/LaunchAgents/org.macosforge.xquartz.startx.plist
sudo rm /Library/LaunchDaemons/org.macosforge.xquartz.privileged_startx.plist
sudo rm -r /opt/X11
sudo rm /etc/manpaths.d/40-XQuartz
sudo rm /etc/paths.d/40-XQuartz