Removes the global lists all_clothing, all_items, all_objs, and all_atoms for performance reasons.

- The cost of maintaining these lists is more than the benefit of having them (mostly used only for debugging code)

code/modules/admin/view_variables/topic.dm

@@ -184,7 +184,7 @@
 		switch(action_type)
 			if("Strict type")
 				var/i = 0
-				for(var/obj/Obj in all_objs)
+				for(var/obj/Obj in world)
 					if(Obj.type == O_type)
 						i++
 						qdel(Obj)
@@ -195,7 +195,7 @@
 				message_admins("<span class='notice'>[key_name(usr)] deleted all objects of type [O_type] ([i] objects deleted)</span>")
 			if("Type and subtypes")
 				var/i = 0
-				for(var/obj/Obj in all_objs)
+				for(var/obj/Obj in world)
 					if(istype(Obj,O_type))
 						i++
 						qdel(Obj)