Proper mirror PR for the disease refactor because I fucked up the first one. (#2026)

* Revert "im a dumbass and didn't see the .rej files Revert "[MIRROR] Disease Refactor" (#2025)"

This reverts commit 44742cb115.

* Delete shuttle_loan.dm.rej

* Delete life.dm.rej

* Update life.dm

* Delete life.dm.rej

* compile

code/controllers/subsystem/disease.dm

@@ -1,11 +1,8 @@
 SUBSYSTEM_DEF(disease)
 	name = "Disease"
-	flags = SS_KEEP_TIMING|SS_NO_INIT
-	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
-
-	var/list/currentrun = list()
-	var/list/processing = list()
+	flags = SS_NO_FIRE
 
+	var/list/active_diseases = list() //List of Active disease in all mobs; purely for quick referencing.
 	var/list/diseases
 	var/list/archive_diseases = list()
 
@@ -15,27 +12,5 @@ SUBSYSTEM_DEF(disease)
 	if(!diseases)
 		diseases = subtypesof(/datum/disease)
 
-/datum/controller/subsystem/disease/Recover()
-	currentrun = SSdisease.currentrun
-	processing = SSdisease.processing
-	diseases = SSdisease.diseases
-	archive_diseases = SSdisease.archive_diseases
-
 /datum/controller/subsystem/disease/stat_entry(msg)
-	..("P:[processing.len]")
-
-/datum/controller/subsystem/disease/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/thing = currentrun[currentrun.len]
-		currentrun.len--
-		if(thing)
-			thing.process()
-		else
-			processing.Remove(thing)
-		if (MC_TICK_CHECK)
-			return
+	..("P:[active_diseases.len]")