[four-in-a-row] help: Option to customize keyboard shortcuts does not exist anymore

[Andre Klapper <aklapper src gnome org>]

commit ee99d73796908edf9264cff579d1f7c6c6aa4621
Author: Andre Klapper <a9016009 gmx de>
Date:   Sun Feb 23 18:55:10 2020 +0100

    help: Option to customize keyboard shortcuts does not exist anymore
    
    Fixes #18

 help/C/controls-change.page | 54 ---------------------------------------------
 help/meson.build            |  3 +--
 2 files changed, 1 insertion(+), 56 deletions(-)
---
diff --git a/help/meson.build b/help/meson.build
index ec8e463..d6f5f21 100644
--- a/help/meson.build
+++ b/help/meson.build
@@ -6,7 +6,6 @@ help_pages = [
     'appearance.page',
     'basics.page',
     'choose-opponent.page',
-    'controls-change.page',
     'controls-default.page',
     'index.page',
     'legal.xml',
@@ -19,4 +18,4 @@ gnome.yelp(meson.project_name(),
     sources: help_pages,
     media: help_media,
     symlink_media: true
-)
\ No newline at end of file
+)