Revert "Merge branch 'render-script' into 'master'"
This reverts merge request !35 (merged)
Doesn't quite works for the flatpak case:
$ ./render-icon-theme.py folders
error: Multiple branches available for org.inkscape.Inkscape, you must specify one of: org.inkscape.Inkscape/x86_64/stable, org.inkscape.Inkscape/x86_64/beta
Inkscape is required for this script