Sayu grenade and assembly update

code/modules/assembly/igniter.dm

@@ -4,32 +4,15 @@
 	icon_state = "igniter"
 	m_amt = 500
 	g_amt = 50
-	w_amt = 10
 	origin_tech = "magnets=1"
 
-	secured = 1
-	wires = WIRE_RECEIVE
+	describe()
+		return "The igniter is [secured?"secured.":"unsecured."]"
 
 	activate()
 		if(!..())	return 0//Cooldown check
-
-		if(holder && istype(holder.loc,/obj/item/weapon/grenade/chem_grenade))
-			var/obj/item/weapon/grenade/chem_grenade/grenade = holder.loc
-			grenade.prime()
-		else
-			var/turf/location = get_turf(loc)
-			if(location)
-				location.hotspot_expose(1000,1000)
-			if (istype(src.loc,/obj/item/device/assembly_holder))
-				if (istype(src.loc.loc, /obj/structure/reagent_dispensers/fueltank/))
-					var/obj/structure/reagent_dispensers/fueltank/tank = src.loc.loc
-					if (tank && tank.modded)
-						tank.explode()
-
-			var/datum/effect/effect/system/spark_spread/s = new /datum/effect/effect/system/spark_spread
-			s.set_up(3, 1, src)
-			s.start()
-
+		var/turf/location = get_turf(loc)
+		if(location)	location.hotspot_expose(1000,1000)
 		return 1