Revert "Rename section editor variable."

This reverts commit 478c67f293d2b699e93ead99a598196dc20b3fb4.
Revert "Add section editor role"

This reverts commit 68e68160d4c385f4b8d4224ae26497dd78a43e89.
Revert "Create the administrator role."

This reverts commit 6e775fc199483a766b95e3389c1393bc3a5dabd0.