Slightly simplify this code by using a predicate in the  findDevicesFromQuery() call.
Slightly simplify this code by using a predicate in the 
findDevicesFromQuery() call.

CCMAIL: kretz@kde.org

svn path=/trunk/KDE/kdelibs/phonon/; revision=628157

sandsmark/phonon-visualization-gsoc,sandsmark/phonon-visualization-gsoc,sandsmark/phonon-visualization-gsoc,sandsmark/phonon-visualization-gsoc