Se quitan los cambios realizados en 8-years.

Los cambios realizados en este branch erán de caracter temporal.

Revert "Merge branch '8-years' into updates-production-without-plone.batching"

This reverts commit 0f9cdb26c9550c32099b9cefd74c5fa761e0ccbf, reversing
changes made to 284519890022e0ce6cd79d49ee5d004ba572eea8.