Fix #6001

Created by: clusterfack

Removes any code associated with /obj/item/borg/sight Adds the necessary unequip to uneq_all for borgs so #6001 (closed) is fixed Removes a duplicate robot_upgrades.dm Fixes an unreported bug where using the verb to change sight would not update the hud element Also for good sport adds some better formatting to mr v.a.l.i.d.'s interaction menu