Revert "12/10/23 - Map swap update" (#15593)

code/modules/asset_cache/assets/chat.dm

@@ -1,2 +0,0 @@
-/datum/asset/spritesheet/chat
-	name = "chat"

code/modules/asset_cache/assets/tgui.dm

@@ -5,9 +5,11 @@
 		"tgui.bundle.css" = file("tgui/public/tgui.bundle.css"),
 	)
 
+/* Comment will be removed in later part
 /datum/asset/simple/tgui_panel
 	// keep_local_name = TRUE
 	assets = list(
 		"tgui-panel.bundle.js" = file("tgui/public/tgui-panel.bundle.js"),
 		"tgui-panel.bundle.css" = file("tgui/public/tgui-panel.bundle.css"),
 	)
+*/