[gnome-shell] windowMenu: Remove left-over variable

[Florian Müllner <fmuellner src gnome org>]

commit 09af4433b0b182cf01eed751022d8fddcf15d88f
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Mar 14 16:20:36 2017 +0100

    windowMenu: Remove left-over variable

 js/ui/windowMenu.js |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/js/ui/windowMenu.js b/js/ui/windowMenu.js
index 5cd6802..4e2a18b 100644
--- a/js/ui/windowMenu.js
+++ b/js/ui/windowMenu.js
@@ -97,8 +97,6 @@ const WindowMenu = new Lang.Class({
             if (window.is_always_on_all_workspaces())
                 item.setSensitive(false);
 
-            let nWorkspaces = global.screen.n_workspaces;
-
             if (!isSticky) {
                 let workspace = window.get_workspace();
                 if (workspace != workspace.get_neighbor(Meta.MotionDirection.LEFT)) {