Doc: Remove link to removed tutorial

Change-Id: Icfc111addf4e9e69d29325275ef997a7f923b1ca
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>

doc/src/overview/creator-tutorials.qdoc

 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2017 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the Qt Creator documentation.
@@ -58,13 +58,6 @@
             Learn how to create a Qt Quick application using Qt Quick Controls 2
             for Android and iOS devices.
 
-       \li \l{Using Qt Quick UI Forms}
-
-            Learn how to develop a Qt Quick application by using UI forms.
-            UI forms are split into \e .qml and \e .js files that contain the
-            business logic, and \e .ui.qml files that only contain the purely
-            declarative description of the UI.
-
     \endlist
 
 */