[gnome-shell] status/system: Use icon-name property

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

commit e2cd66169bd865bb4f22a024c835a857d82e9cf6
Author: Florian Müllner <fmuellner gnome org>
Date:   Sun Aug 21 18:24:06 2022 +0200

    status/system: Use icon-name property
    
    The quick settings code was first developed in an extension, which
    meant it made sense to maintain compatibility with GNOME 42 and not
    use the new :icon-name convenience property.
    
    There is no good for sticking with that for GNOME 43 as well.
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2439>

 js/ui/status/system.js | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/js/ui/status/system.js b/js/ui/status/system.js
index d4607d5193..204a78ac34 100644
--- a/js/ui/status/system.js
+++ b/js/ui/status/system.js
@@ -134,9 +134,7 @@ class ShutdownItem extends QuickSettingsItem {
             style_class: 'icon-button',
             hasMenu: true,
             canFocus: true,
-            child: new St.Icon({
-                icon_name: 'system-shutdown-symbolic',
-            }),
+            icon_name: 'system-shutdown-symbolic',
             accessible_name: _('Power Off Menu'),
         });
 
@@ -210,9 +208,7 @@ class LockItem extends QuickSettingsItem {
         super._init({
             style_class: 'icon-button',
             can_focus: true,
-            child: new St.Icon({
-                icon_name: 'system-lock-screen-symbolic',
-            }),
+            icon_name: 'system-lock-screen-symbolic',
             accessible_name: _('Lock Screen'),
         });