Removes Unused Settings From Game Preferances (#23368)

* Removes all reference of ROLE_NINJA

* By public demand

code/modules/client/preference/preferences.dm

@@ -1,6 +1,5 @@
 GLOBAL_LIST_INIT(special_role_times, list( //minimum age (in days) for accounts to play these roles
 	ROLE_PAI = 0,
-	ROLE_POSIBRAIN = 0,
 	ROLE_GUARDIAN = 0,
 	ROLE_TRAITOR = 7,
 	ROLE_CHANGELING = 14,
@@ -16,8 +15,6 @@ GLOBAL_LIST_INIT(special_role_times, list( //minimum age (in days) for accounts
 	ROLE_SENTIENT = 21,
 	ROLE_ELITE = 21,
 // 	ROLE_GANG = 21,
-	ROLE_NINJA = 21,
-	ROLE_GSPIDER = 21,
 	ROLE_ABDUCTOR = 30
 ))
 

code/modules/mob/living/brain/robotic_brain.dm

@@ -72,18 +72,6 @@
 		return TRUE
 	return FALSE
 
-/obj/item/mmi/robotic_brain/proc/question(client/C)
-	spawn(0)
-		if(!C)
-			return
-		var/response = alert(C, "Someone is requesting a personality for a [src]. Would you like to play as one?", "[src] request", "Yes", "No", "Never for this round")
-		if(!C || brainmob.key || !searching)
-			return		//handle logouts that happen whilst the alert is waiting for a response, and responses issued after a brain has been located.
-		if(response == "Yes")
-			transfer_personality(C.mob)
-		else if(response == "Never for this round")
-			C.prefs.be_special -= ROLE_POSIBRAIN
-
 // This should not ever happen, but let's be safe
 /obj/item/mmi/robotic_brain/dropbrain(turf/dropspot)
 	CRASH("[src] at [loc] attempted to drop brain without a contained brain.")