[gtk/drop-file-system: 6/7] Drop GtkFileSystem

[Matthias Clasen <matthiasc src gnome org>]

commit 0db68f78e26855f3f3b9a26b76636e68b78bc144
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Jul 11 23:24:10 2020 -0400

    Drop GtkFileSystem
    
    It is no longer used.

 gtk/gtkfilesystem.c | 749 ----------------------------------------------------
 gtk/gtkfilesystem.h | 105 --------
 gtk/meson.build     |   1 -
 3 files changed, 855 deletions(-)
---
diff --git a/gtk/meson.build b/gtk/meson.build
index 02ba60a842..96f626aef3 100644
--- a/gtk/meson.build
+++ b/gtk/meson.build
@@ -105,7 +105,6 @@ gtk_private_sources = files([
   'gtkfilechoosererrorstack.c',
   'gtkfilechoosernativeportal.c',
   'gtkfilechooserutils.c',
-  'gtkfilesystem.c',
   'gtkfilesystemmodel.c',
   'gtkgizmo.c',
   'gtkgladecatalog.c',