library/perl: remove one-time backfill for EOL Perl versions
library/perl: remove one-time backfill for EOL Perl versions

Images from Perl 5.8 to 5.28 are done rebuilding for
https://github.com/Perl/docker-perl/issues/100.

docker-solr/official-images,docker-solr/official-images,docker-solr/official-images,docker-library/official-images,neo-technology/docker-official-images,31z4/official-images,infosiftr/stackbrew,infosiftr/stackbrew,thresheek/official-images,infosiftr/stackbrew,docker-library/official-images,infosiftr/stackbrew,31z4/official-images,neo-technology/docker-official-images,docker-library/official-images,neo-technology/docker-official-images,docker-solr/official-images,thresheek/official-images,infosiftr/stackbrew,thresheek/official-images,neo-technology/docker-official-images,thresheek/official-images,thresheek/official-images,docker-solr/official-images,31z4/official-images,31z4/official-images,infosiftr/stackbrew,docker-library/official-images,infosiftr/stackbrew,31z4/official-images,neo-technology/docker-official-images,thresheek/official-images,neo-technology/docker-official-images,31z4/official-images,neo-technology/docker-official-images,thresheek/official-images,docker-solr/official-images,thresheek/official-images,infosiftr/stackbrew,31z4/official-images,neo-technology/docker-official-images,docker-solr/official-images,docker-library/official-images,infosiftr/stackbrew,31z4/official-images,31z4/official-images,31z4/official-images,thresheek/official-images,infosiftr/stackbrew,neo-technology/docker-official-images,docker-solr/official-images,thresheek/official-images,docker-library/official-images,docker-library/official-images,31z4/official-images,31z4/official-images,docker-solr/official-images,neo-technology/docker-official-images,thresheek/official-images,docker-library/official-images,infosiftr/stackbrew,thresheek/official-images,docker-library/official-images,docker-library/official-images,infosiftr/stackbrew,docker-library/official-images,neo-technology/docker-official-images,docker-solr/official-images,31z4/official-images,docker-solr/official-images,docker-solr/official-images,neo-technology/docker-official-images,infosiftr/stackbrew,neo-technology/docker-official-images,docker-library/official-images,docker-solr/official-images,infosiftr/stackbrew,docker-library/official-images,docker-library/official-images,neo-technology/docker-official-images,docker-solr/official-images,thresheek/official-images,31z4/official-images,thresheek/official-images