[gnome-shell] dbus-services/extensions: Remove outdated requires

[Marge Bot <marge-bot src gnome org>]

commit c071c3ed4ca48dc9275657437344258dc99cbd0c
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Jan 8 21:25:49 2022 +0100

    dbus-services/extensions: Remove outdated requires
    
    We are using GTK4, not GTK3 >= 3.20 ...
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2012>

 js/dbusServices/extensions/ui/extension-prefs-dialog.ui | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/js/dbusServices/extensions/ui/extension-prefs-dialog.ui 
b/js/dbusServices/extensions/ui/extension-prefs-dialog.ui
index c03dc24b98..28f9d1b2c4 100644
--- a/js/dbusServices/extensions/ui/extension-prefs-dialog.ui
+++ b/js/dbusServices/extensions/ui/extension-prefs-dialog.ui
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
-  <requires lib="gtk+" version="3.20"/>
   <template class="ExtensionPrefsDialog" parent="GtkWindow">
     <property name="default-width">600</property>
     <property name="default-height">400</property>