[gnome-music/wip/mschraal/gtk4-v3: 241/248] coremodel: Remove unused function

[Marinus Schraal <mschraal src gnome org>]

commit 2a6e3ad02441ab272fdb00949b53a62e2a82501a
Author: Marinus Schraal <mschraal gnome org>
Date:   Mon Feb 14 01:04:12 2022 +0100

    coremodel: Remove unused function

 gnomemusic/coremodel.py | 3 ---
 1 file changed, 3 deletions(-)
---
diff --git a/gnomemusic/coremodel.py b/gnomemusic/coremodel.py
index 5e1f6d6e5..e8720be26 100644
--- a/gnomemusic/coremodel.py
+++ b/gnomemusic/coremodel.py
@@ -202,9 +202,6 @@ class CoreModel(GObject.GObject):
 
         return utils.natural_sort_names(song_a.props.album, song_b.props.album)
 
-    def _filter_selected(self, coresong):
-        return coresong.props.selected
-
     def _albums_sort(self, album_a, album_b, data=None):
         return utils.natural_sort_names(
             album_a.props.title, album_b.props.title)