Removes overlay queuing, saves 6/7 seconds of initialize. Lightly modifies stat tracking macros (#69696)

* Removes overlay queuing, saves 6/7 seconds of initialize. Lightly modifies stat tracking macros

So we have this overlay queuing system right? It's build with the assumption
that the "add to overlay list" operation is real expensive, and is
thus useful to queue removals or additions.

It turns out that it just isn't, at least during init. In my testing the
operation of queuing took LONGER then the actual overlay add/remove did.

That's ignoring the cost of the subsystem's work.

I've also modified part of the stat tracking macro, since it took a good
bit of cpu time, and didn't seem to well, do anything. So far as I can
tell it always evaluates to 1

code/modules/admin/verbs/ert.dm

@@ -46,7 +46,6 @@
 
 	equipAntagOnDummy(mannequin, ert)
 
-	COMPILE_OVERLAYS(mannequin)
 	CHECK_TICK
 	var/icon/preview_icon = icon('icons/effects/effects.dmi', "nothing")
 	preview_icon.Scale(48+32, 16+32)

code/modules/admin/verbs/mapping.dm

@@ -309,7 +309,6 @@ GLOBAL_VAR_INIT(say_disabled, FALSE)
 					qdel(I)
 				randomize_human(D)
 				D.dress_up_as_job(JB, TRUE)
-				COMPILE_OVERLAYS(D)
 				var/icon/I = icon(getFlatIcon(D), frame = 1)
 				final.Insert(I, JB.title)
 	qdel(D)