[Task Manager] Don't import QtQuick 2.7
We don't make use of any new properties and we still support Qt 5.6 in Plasma 5.9 apparently.
CCBUG: 376199
Reviewed-By: David Edmundson
Differential Revision: https://phabricator.kde.org/D4520
broulik | Feb 9 2017, 10:05 AM |