WelcomePage: remove getting started page

The getting started page is not part redesign, anymore.

Change-Id: Iec779d4fcf86f1800e17a5b7775698b64ce16555
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
WelcomePage: redesign of welcome page

Change-Id: Iec777d4fcf86f1807e17a5be777698b64ce15555
Reviewed-by: Eike Ziller <eike.ziller@digia.com>