remove lighting area GC for now

it's causing more lag than it's helping

Signed-off-by: Mloc-Argent <colmohici@gmail.com>

Conflicts:
	code/controllers/lighting_controller.dm

code/controllers/_DynamicAreaLighting_TG.dm

@@ -74,6 +74,7 @@ datum/light_source
 			changed = 1
 
 		if (owner.l_color != _l_color)
+			readrgb(owner.l_color)
 			changed = 1
 
 		if(changed)

code/controllers/lighting_controller.dm

@@ -16,7 +16,6 @@ datum/controller/lighting
 	var/list/changed_turfs = list()
 	var/changed_turfs_workload_max = 0
 
-	var/list/changed_areas = list()
 
 datum/controller/lighting/New()
 	lighting_states = max( 0, length(icon_states(LIGHTING_ICON))-1 )
@@ -55,19 +54,9 @@ datum/controller/lighting/proc/process()
 				for(var/i=1, i<=changed_turfs.len, i++)
 					var/turf/T = changed_turfs[i]
 					if(T && T.lighting_changed)
-						changed_areas |= T.loc
 						T.shift_to_subarea()
 				changed_turfs.Cut()		// reset the changed list
 
-				for(var/i = 1; i <= changed_areas.len, i++)
-					var/area/A = changed_areas[i]
-					if(A.master != A && !A.contents.len)
-						A.tag = null
-						A.related -= A
-						active_areas -= A
-						all_areas -= A
-				changed_areas.Cut()
-
 				process_cost = (world.timeofday - started)
 
 			sleep(processing_interval)