Removes the datum pool, as it is not performant.

* Creating new objects is cheap, in fact comparable to the cost of getting it out of the pool, so it doesn't help there.
* Placing items in the pool is far more expensive than letting them garbage collect due to the resetting of vars and such.

code/game/objects/structures/grille.dm

@@ -97,7 +97,7 @@
 	if(iswirecutter(W))
 		if(!shock(user, 100))
 			playsound(loc, 'sound/items/Wirecutter.ogg', 100, 1)
-			PoolOrNew(/obj/item/stack/rods, list(get_turf(src), destroyed ? 1 : 2))
+			new /obj/item/stack/rods(get_turf(src), destroyed ? 1 : 2)
 			qdel(src)
 	else if((isscrewdriver(W)) && (istype(loc, /turf/simulated) || anchored))
 		if(!shock(user, 90))
@@ -152,7 +152,7 @@
 
 	else if(!(W.flags & CONDUCT) || !shock(user, 70))
 		user.setClickCooldown(DEFAULT_ATTACK_COOLDOWN)
-		user.do_attack_animation(src)
+		user.do_attack_animation(src)
 		playsound(loc, 'sound/effects/grillehit.ogg', 80, 1)
 		switch(W.damtype)
 			if("fire")
@@ -170,11 +170,11 @@
 			density = 0
 			destroyed = 1
 			update_icon()
-			PoolOrNew(/obj/item/stack/rods, get_turf(src))
+			new /obj/item/stack/rods(get_turf(src))
 
 		else
 			if(health <= -6)
-				PoolOrNew(/obj/item/stack/rods, get_turf(src))
+				new /obj/item/stack/rods(get_turf(src))
 				qdel(src)
 				return
 	return

code/game/objects/structures/lattice.dm

@@ -65,7 +65,7 @@
 		if(WT.welding == 1)
 			if(WT.remove_fuel(0, user))
 				user << "<span class='notice'>Slicing lattice joints ...</span>"
-			PoolOrNew(/obj/item/stack/rods, src.loc)
+			new /obj/item/stack/rods(src.loc)
 			qdel(src)
 
 	return

code/game/objects/structures/watercloset.dm

@@ -182,13 +182,13 @@
 			spawn(50)
 				if(src && on)
 					ismist = 1
-					mymist = PoolOrNew(/obj/effect/mist,loc)
+					mymist = new /obj/effect/mist(loc)
 		else
 			ismist = 1
-			mymist = PoolOrNew(/obj/effect/mist,loc)
+			mymist = new /obj/effect/mist(loc)
 	else if(ismist)
 		ismist = 1
-		mymist = PoolOrNew(/obj/effect/mist,loc)
+		mymist = new /obj/effect/mist(loc)
 		spawn(250)
 			if(src && !on)
 				qdel(mymist)

code/game/objects/structures/window.dm

@@ -92,11 +92,11 @@
 		index = 0
 		while(index < 2)
 			new shardtype(loc) //todo pooling?
-			if(reinf) PoolOrNew(/obj/item/stack/rods, loc)
+			if(reinf) new /obj/item/stack/rods(loc)
 			index++
 	else
 		new shardtype(loc) //todo pooling?
-		if(reinf) PoolOrNew(/obj/item/stack/rods, loc)
+		if(reinf) new /obj/item/stack/rods(loc)
 	qdel(src)
 	return
 

code/game/objects/structures/window_spawner.dm

@@ -35,7 +35,7 @@
 /obj/effect/wingrille_spawn/proc/activate()
 	if(activated) return
 	if (!locate(/obj/structure/grille) in get_turf(src))
-		var/obj/structure/grille/G = PoolOrNew(/obj/structure/grille, src.loc)
+		var/obj/structure/grille/G = new /obj/structure/grille(src.loc)
 		handle_grille_spawn(G)
 	var/list/neighbours = list()
 	for (var/dir in cardinal)
@@ -49,7 +49,7 @@
 						found_connection = 1
 						qdel(W)
 			if(!found_connection)
-				var/obj/structure/window/new_win = PoolOrNew(win_path, src.loc)
+				var/obj/structure/window/new_win = new win_path(src.loc)
 				new_win.set_dir(dir)
 				handle_window_spawn(new_win)
 		else