Correct removal of StreamPanels for FILE streams that no longer exist.
Correct removal of StreamPanels for FILE streams that no longer exist.

mheinsen/seec,mheinsen/seec,seec-team/seec,seec-team/seec,seec-team/seec,seec-team/seec,mheinsen/seec,mheinsen/seec,seec-team/seec,mheinsen/seec