QtSystemInfo is not officially supported in Qt5 and its QML API is
currently broken. Inhibition of the screensaver is not essential
for the example anyway.
Task-number: QTBUG-31080
Change-Id: Ia2e7d8de3e2044e11e1681907e61a7207489ad1b
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>