[MIRROR] Weakref cleanup (#12704)

Co-authored-by: Will <7099514+Willburd@users.noreply.github.com>
Co-authored-by: Cameron Lennox <killer65311@gmail.com>

code/modules/tgui/modules/appearance_changer.dm

@@ -1140,6 +1140,7 @@
 	if(DC)
 		DC.selected_record = FALSE
 		DC.designer_gui = null // no hardrefs
+	linked_body_design_console = null
 	. = ..()
 
 /datum/tgui_module/appearance_changer/body_designer/proc/make_fake_owner()

code/modules/tgui/modules/communications.dm

@@ -44,6 +44,10 @@
 	crew_announcement = new()
 	crew_announcement.newscast = TRUE
 
+/datum/tgui_module/communications/Destroy(force)
+	. = ..()
+	ATC = null
+
 /datum/tgui_module/communications/tgui_interact(mob/user, datum/tgui/ui)
 	if(using_map && !(get_z(user) in using_map.contact_levels))
 		to_chat(user, span_danger("Unable to establish a connection: You're too far away from the station!"))