DAVFS: remove pointless "incremental" parameter to _do_propfind
DAVFS: remove pointless "incremental" parameter to _do_propfind

rivenz/pyfilesystem,PyFilesystem/pyfilesystem,pmitros/pyfs,piranna/pyfilesystem,pombreda/pyfilesystem,flying-circus/pyfilesystem,Konubinix/pyfilesystem,pmitros/pyfs,zopyx/pyfilesystem