Remove wrong Qt Creator version number from Qt Quick template files

Task-number: QTCREATORBUG-10975
Change-Id: I6eb87a789ce88b1f3f298ef65b8bb96ce2348501
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: Jarek Kobus <jaroslaw.kobus@digia.com>