[gtk/drop-coverflow] Drop GtkCoverFlow for now

[Matthias Clasen <matthiasc src gnome org>]

commit 73fdb8f7b084d8802d6905036fc7c40b533f5279
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun May 31 13:11:35 2020 -0400

    Drop GtkCoverFlow for now
    
    There is no agreement that a coverflow widget is
    appropriate for GTK 4.
    
    It would be ok as a demo if it could live in gtk-demo,
    but that requires us to make GtkListBase public first.
    The demo is also somewhat rough and needs more work
    to look plausible.
    
    Drop GtkCoverFlow and the related demo for now.

 demos/gtk-demo/demo.gresource.xml     |   1 -
 demos/gtk-demo/listview_applauncher.c | 199 ----------
 demos/gtk-demo/meson.build            |   1 -
 gtk/gtk.h                             |   1 -
 gtk/gtkcoverflow.c                    | 704 ----------------------------------
 gtk/gtkcoverflow.h                    |  68 ----
 gtk/meson.build                       |   2 -
 7 files changed, 976 deletions(-)
---
diff --git a/demos/gtk-demo/demo.gresource.xml b/demos/gtk-demo/demo.gresource.xml
index 138c70bdd2..8753b078ba 100644
--- a/demos/gtk-demo/demo.gresource.xml
+++ b/demos/gtk-demo/demo.gresource.xml
@@ -218,7 +218,6 @@
     <file>infobar.c</file>
     <file>links.c</file>
     <file>listbox.c</file>
-    <file>listview_applauncher.c</file>
     <file>listview_colors.c</file>
     <file>listview_clocks.c</file>
     <file>listview_filebrowser.c</file>
diff --git a/demos/gtk-demo/meson.build b/demos/gtk-demo/meson.build
index 8c4b960ed7..9815058530 100644
--- a/demos/gtk-demo/meson.build
+++ b/demos/gtk-demo/meson.build
@@ -42,7 +42,6 @@ demos = files([
   'listbox.c',
   'flowbox.c',
   'list_store.c',
-  'listview_applauncher.c',
   'listview_clocks.c',
   'listview_colors.c',
   'listview_filebrowser.c',
diff --git a/gtk/gtk.h b/gtk/gtk.h
index ae2c76977f..6855067ef4 100644
--- a/gtk/gtk.h
+++ b/gtk/gtk.h
@@ -85,7 +85,6 @@
 #include <gtk/gtkcomboboxtext.h>
 #include <gtk/gtkconstraintlayout.h>
 #include <gtk/gtkconstraint.h>
-#include <gtk/gtkcoverflow.h>
 #include <gtk/gtkcssprovider.h>
 #include <gtk/gtkcustomlayout.h>
 #include <gtk/gtkcustomsorter.h>
diff --git a/gtk/meson.build b/gtk/meson.build
index 448de76888..c7d5959631 100644
--- a/gtk/meson.build
+++ b/gtk/meson.build
@@ -206,7 +206,6 @@ gtk_public_sources = files([
   'gtkconstraintguide.c',
   'gtkconstraintlayout.c',
   'gtkconstraint.c',
-  'gtkcoverflow.c',
   'gtkcssprovider.c',
   'gtkcustomfilter.c',
   'gtkcustomlayout.c',
@@ -486,7 +485,6 @@ gtk_public_headers = files([
   'gtkconstraintguide.h',
   'gtkconstraintlayout.h',
   'gtkconstraint.h',
-  'gtkcoverflow.h',
   'gtkcssprovider.h',
   'gtkcustomfilter.h',
   'gtkcustomlayout.h',