[gnome-shell] appDisplay: Remove pointless return value

[Florian Müllner <fmuellner src gnome org>]

commit d836194e319186bebb932fb1f54982afac14327f
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Aug 7 18:38:36 2014 +0200

    appDisplay: Remove pointless return value
    
    StButton::clicked does not have a return type, so don't return anything.

 js/ui/appDisplay.js |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 3eae1e5..c32acb6 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -1501,7 +1501,6 @@ const AppIcon = new Lang.Class({
             this.app.open_new_window(-1);
             Main.overview.hide();
         }
-        return false;
     },
 
     _onKeyboardPopupMenu: function() {