gstreamer: Clarify state change by not checking someone we know to be true.
gstreamer: Clarify state change by not checking someone we know to be true.

KDE/phonon-quicktime,shadeslayer/phonon-gstreamer,KDE/phonon-xine,KDE/phonon-gstreamer,KDE/phonon-mmf,KDE/phonon-waveout,KDE/phonon-gstreamer,KDE/phonon-xine,shadeslayer/phonon-gstreamer,KDE/phonon-xine,shadeslayer/phonon-gstreamer,KDE/phonon-directshow,KDE/phonon-directshow