map cleanups (#7504)

cleanup map files

code/modules/holodeck/HolodeckControl.dm

@@ -189,7 +189,9 @@
 	current_program = powerdown_program
 	linkedholodeck = locate(projection_area)
 	if(!linkedholodeck)
-		to_chat(world, "<span class='danger'>Holodeck computer at [x],[y],[z] failed to locate projection area.</span>")
+		log_mapping("[src] at [AREACOORD(src)] has no matching holodeck area.")
+		qdel(src)
+		return
 
 //This could all be done better, but it works for now.
 /obj/machinery/computer/HolodeckControl/Destroy()