[libhandy] Drop hdy_list_box_separator_header()

[Alexander Mikhaylenko <alexm src gnome org>]

commit bd7db8224e17abe97500a90396cb65275063e1de
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Sat Jun 6 09:52:00 2020 +0200

    Drop hdy_list_box_separator_header()
    
    Favor using CSS styling instead, and in the worst case it's a simple
    function.
    
    Fixes https://gitlab.gnome.org/GNOME/libhandy/-/issues/219

 debian/libhandy-1-0.symbols    |  1 -
 doc/handy-docs.xml             |  1 -
 doc/hdy-migrating-0-0-to-1.xml |  8 ++++++
 src/handy.h                    |  1 -
 src/hdy-list-box.c             | 62 ------------------------------------------
 src/hdy-list-box.h             | 22 ---------------
 src/meson.build                |  2 --
 7 files changed, 8 insertions(+), 89 deletions(-)
---
diff --git a/debian/libhandy-1-0.symbols b/debian/libhandy-1-0.symbols
index 635a5ce3..08965f0a 100644
--- a/debian/libhandy-1-0.symbols
+++ b/debian/libhandy-1-0.symbols
@@ -214,7 +214,6 @@ libhandy-1.so.0 libhandy-1-0 #MINVER#
  hdy_leaflet_set_visible_child_name@LIBHANDY_1_0 0.0~git20180429
  hdy_leaflet_transition_type_get_type@LIBHANDY_1_0 0.0.12
  hdy_lerp@LIBHANDY_1_0 0.0.11
- hdy_list_box_separator_header@LIBHANDY_1_0 0.0.6
  hdy_navigation_direction_get_type@LIBHANDY_1_0 0.9.9
  hdy_nothing_get_type@LIBHANDY_1_0 0.80.0
  hdy_nothing_new@LIBHANDY_1_0 0.80.0
diff --git a/doc/handy-docs.xml b/doc/handy-docs.xml
index b65b266d..6cfe9e31 100644
--- a/doc/handy-docs.xml
+++ b/doc/handy-docs.xml
@@ -70,7 +70,6 @@
   <chapter id="helpers">
     <title>Helpers</title>
     <xi:include href="xml/hdy-version.xml"/>
-    <xi:include href="xml/hdy-list-box.xml"/>
   </chapter>
 
   <chapter id="migrating">
diff --git a/doc/hdy-migrating-0-0-to-1.xml b/doc/hdy-migrating-0-0-to-1.xml
index e5e510c6..39a13055 100644
--- a/doc/hdy-migrating-0-0-to-1.xml
+++ b/doc/hdy-migrating-0-0-to-1.xml
@@ -234,6 +234,14 @@
       </para>
     </refsect3>
 
+    <refsect3>
+      <title>Stop using hdy_list_box_separator_header()</title>
+      <para>
+        Instead, either use CSS styling (the list.preferences style class may
+        fit your need), or implement it yourself as it is trivial.
+      </para>
+    </refsect3>
+
   </refsect2>
 
 </refentry>
diff --git a/src/handy.h b/src/handy.h
index 9e6389f0..4bbf102e 100644
--- a/src/handy.h
+++ b/src/handy.h
@@ -40,7 +40,6 @@ G_BEGIN_DECLS
 #include "hdy-header-group.h"
 #include "hdy-keypad.h"
 #include "hdy-leaflet.h"
-#include "hdy-list-box.h"
 #include "hdy-navigation-direction.h"
 #include "hdy-preferences-group.h"
 #include "hdy-preferences-page.h"
diff --git a/src/meson.build b/src/meson.build
index c2332308..b73091c8 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -80,7 +80,6 @@ src_headers = [
   'hdy-header-group.h',
   'hdy-keypad.h',
   'hdy-leaflet.h',
-  'hdy-list-box.h',
   'hdy-navigation-direction.h',
   'hdy-preferences-group.h',
   'hdy-preferences-page.h',
@@ -128,7 +127,6 @@ src_sources = [
   'hdy-keypad-button.c',
   'hdy-keypad.c',
   'hdy-leaflet.c',
-  'hdy-list-box.c',
   'hdy-main.c',
   'hdy-navigation-direction.c',
   'hdy-nothing.c',