Remove medium vars from base driver
Remove medium vars from base driver

sni/vagrant,mitchellh/vagrant,chrisroberts/vagrant,marxarelli/vagrant,sni/vagrant,mitchellh/vagrant,mitchellh/vagrant,chrisroberts/vagrant,mitchellh/vagrant,chrisroberts/vagrant,marxarelli/vagrant,chrisroberts/vagrant,sni/vagrant,marxarelli/vagrant,sni/vagrant,marxarelli/vagrant