[polari] roomList: Remove unused exports

[Florian Müllner <fmuellner src gnome org>]

commit d7b28b0d79f3cb42c4c7c5c6145bdd98adad8dd6
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Aug 4 17:39:41 2021 +0200

    roomList: Remove unused exports
    
    Only RoomList is actually used from other modules, so stop exporting
    headers/rows.
    
    https://gitlab.gnome.org/GNOME/polari/-/merge_requests/208

 src/roomList.js | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)
---
diff --git a/src/roomList.js b/src/roomList.js
index 7cef3325..685f65d0 100644
--- a/src/roomList.js
+++ b/src/roomList.js
@@ -1,8 +1,4 @@
-export {
-    RoomList,
-    RoomListHeader,
-    RoomRow
-};
+export { RoomList };
 
 import Gdk from 'gi://Gdk';
 import Gio from 'gi://Gio';