[gnome-shell] panelMenu: Remove inaccurate comment

[Jasper St. Pierre <jstpierre src gnome org>]

commit 994021d77f194aa49c9c8fa8ff0d9f391826cc29
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Thu Dec 20 19:25:23 2012 -0500

    panelMenu: Remove inaccurate comment
    
    This has been out of date ever since the -symbolic fallbacks
    have gone away.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=690589

 js/ui/panelMenu.js |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/js/ui/panelMenu.js b/js/ui/panelMenu.js
index 9029b4e..bde3f03 100644
--- a/js/ui/panelMenu.js
+++ b/js/ui/panelMenu.js
@@ -253,9 +253,6 @@ const SystemStatusButton = new Lang.Class({
     },
 
     setIcon: function(iconName) {
-        // Need to first add a NULL GIcon and then set icon_name, to ensure
-        // compatibility with -symbolic fallbacks
-
         if (!this.mainIcon)
             this.mainIcon = this.addIcon(null);
         this.mainIcon.icon_name = iconName;