Remove crash in plasmashell
Summary: remove bug in plasmashell Bug 405341
Test Plan: can't reproduce bug
Reviewers: dfaure, Frameworks, Plasma, broulik
Reviewed By: Plasma, broulik
Subscribers: broulik, kde-frameworks-devel
Tags: Frameworks
Differential Revision: https://phabricator.kde.org/D19698
(cherry picked from commit ebae2d63033647950cf0f9d97410723a8c7db1f3)