requested to merge demarle/cinema_python:fix-paraview-exports-after-cleanup into for/paraview
ParaView's export scene to cinema feature has been replaced and the class that this used to use for progress handling is gone. This change prevents the resulting runtime failure that prevents cinema image outputs from working. The only place progress was emitted way by the export scene to cinema feature.
We may bring it back if we want progress events from the new export now feature.