[gnome-shell] layout: Remove left-over property

[Florian Müllner <fmuellner src gnome org>]

commit 86c67167864c60698fa1a4f3e2064b9f3f8bed03
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Feb 27 04:03:16 2015 +0100

    layout: Remove left-over property

 js/ui/layout.js |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/layout.js b/js/ui/layout.js
index 802c835..c52ed61 100644
--- a/js/ui/layout.js
+++ b/js/ui/layout.js
@@ -180,7 +180,6 @@ const LayoutManager = new Lang.Class({
 
         this._keyboardIndex = -1;
         this._rightPanelBarrier = null;
-        this._trayBarrier = null;
 
         this._inOverview = false;
         this._updateRegionIdle = 0;