[gnome-todo] sidebar: Remove 'sidebar' style class

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit dec5cca483599ea5358724b5f4a5c0d46b88adef
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Wed Sep 15 08:47:52 2021 -0300

    sidebar: Remove 'sidebar' style class
    
    It's now added to the parent box, and includes the header bar.

 src/plugins/task-lists-workspace/gtd-sidebar.ui | 3 ---
 1 file changed, 3 deletions(-)
---
diff --git a/src/plugins/task-lists-workspace/gtd-sidebar.ui b/src/plugins/task-lists-workspace/gtd-sidebar.ui
index 4c7a19e1..4569fb28 100644
--- a/src/plugins/task-lists-workspace/gtd-sidebar.ui
+++ b/src/plugins/task-lists-workspace/gtd-sidebar.ui
@@ -8,9 +8,6 @@
         <property name="max-width-chars">35</property>
       </object>
     </property>
-    <style>
-      <class name="sidebar"/>
-    </style>
 
     <child>
       <object class="GtkShortcutController">