removed redundant workaround for https://bugreports.qt.io/browse/QTBUG-6504 in debug-mode
removed redundant workaround for https://bugreports.qt.io/browse/QTBUG-6504 in debug-mode

Lartza/mumble,Lartza/mumble,Lartza/mumble,Lartza/mumble,Lartza/mumble,Lartza/mumble,Lartza/mumble,Lartza/mumble