Remove the VTEC module (#45147)

VTEC is currently broken (as in, completely non functional) and, quite
frankly, it wouldn't be very healthy for the game if it weren't. A -2
speedmod is no joke. What's more fun than no damage slowdown borg?
That's right, one with a movespeed -2 modifier.

code/game/objects/items/robot/robot_upgrades.dm

@@ -65,27 +65,6 @@
 
 	R.revive()
 
-/obj/item/borg/upgrade/vtec
-	name = "cyborg VTEC module"
-	desc = "Used to kick in a cyborg's VTEC systems, increasing their speed."
-	icon_state = "cyborg_upgrade2"
-	require_module = 1
-
-/obj/item/borg/upgrade/vtec/action(mob/living/silicon/robot/R, user = usr)
-	. = ..()
-	if(.)
-		if(R.speed < 0)
-			to_chat(R, "<span class='notice'>A VTEC unit is already installed!</span>")
-			to_chat(user, "<span class='notice'>There's no room for another VTEC unit!</span>")
-			return FALSE
-
-		R.speed = -2 // Gotta go fast.
-
-/obj/item/borg/upgrade/vtec/deactivate(mob/living/silicon/robot/R, user = usr)
-	. = ..()
-	if (.)
-		R.speed = initial(R.speed)
-
 /obj/item/borg/upgrade/disablercooler
 	name = "cyborg rapid disabler cooling module"
 	desc = "Used to cool a mounted disabler, increasing the potential current in it and thus its recharge rate."