Revert "12/21 modernizations from TG live"

code/controllers/subsystem/orbit.dm

@@ -1,50 +0,0 @@
-var/datum/subsystem/orbit/SSorbit
-
-/datum/subsystem/orbit
-	name = "Orbits"
-	priority = 35
-	wait = 2
-	flags = SS_NO_INIT|SS_TICKER
-
-	var/list/currentrun = list()
-	var/list/processing = list()
-
-/datum/subsystem/orbit/New()
-	NEW_SS_GLOBAL(SSorbit)
-
-
-/datum/subsystem/orbit/stat_entry()
-	..("P:[processing.len]")
-
-
-/datum/subsystem/orbit/fire(resumed = 0)
-	if (!resumed)
-		src.currentrun = processing.Copy()
-
-	//cache for sanic speed (lists are references anyways)
-	var/list/currentrun = src.currentrun
-
-	while (currentrun.len)
-		var/datum/orbit/O = currentrun[currentrun.len]
-		currentrun.len--
-		if (!O)
-			processing -= O
-			if (MC_TICK_CHECK)
-				return
-			continue
-		if (!O.orbiter)
-			qdel(O)
-			if (MC_TICK_CHECK)
-				return
-			continue
-		if (O.lastprocess >= world.time) //we already checked recently
-			if (MC_TICK_CHECK)
-				return
-			continue
-		var/targetloc = get_turf(O.orbiting)
-		if (targetloc != O.lastloc || O.orbiter.loc != targetloc)
-			O.Check(targetloc)
-		if (MC_TICK_CHECK)
-			return
-
-