[gnome-control-center] shell: Remove no longer used icon

[Felipe Borges <felipeborges src gnome org>]

commit e6aa605bd09ea670aebed88fc86b1b8ebe5f9361
Author: Mohammed Sadiq <sadiq sadiqpk org>
Date:   Fri Aug 12 19:06:54 2022 +0530

    shell: Remove no longer used icon

 shell/gnome-control-center.gresource.xml | 1 -
 shell/icons/external-link-symbolic.svg   | 2 --
 2 files changed, 3 deletions(-)
---
diff --git a/shell/gnome-control-center.gresource.xml b/shell/gnome-control-center.gresource.xml
index 13c061108..ec1feae1e 100644
--- a/shell/gnome-control-center.gresource.xml
+++ b/shell/gnome-control-center.gresource.xml
@@ -10,7 +10,6 @@
 
   <!-- Panel icons -->
   <gresource prefix="/org/gnome/Settings">
-    <file preprocess="xml-stripblanks">icons/external-link-symbolic.svg</file>
     <file preprocess="xml-stripblanks">icons/multitasking-symbolic.svg</file>
     <file>style.css</file>
   </gresource>