Remove deprecated & unused option that wasn't displayed in the GUI.
Remove deprecated & unused option that wasn't displayed in the GUI.

phil-davis/pfsense,pfsense/pfsense,dennypage/pfsense,pfsense/pfsense,phil-davis/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,NewEraCracker/pfsense,phil-davis/pfsense,dennypage/pfsense,dennypage/pfsense,pfsense/pfsense,dennypage/pfsense,NewEraCracker/pfsense,pfsense/pfsense,NewEraCracker/pfsense