lib/db: Remove reference to env var that never existed
lib/db: Remove reference to env var that never existed

syncthing/syncthing,imsodin/syncthing,wweich/syncthing,imsodin/syncthing,syncthing/syncthing,syncthing/syncthing,syncthing/syncthing,imsodin/syncthing,wweich/syncthing,wweich/syncthing,syncthing/syncthing,imsodin/syncthing,syncthing/syncthing,imsodin/syncthing,wweich/syncthing