After this, the workaround introduced to
OpenDocument-v1.4+libreoffice-schema.rng in
afa4965e4d "schema: update to ODF 1.4 OS"
can be removed
Change-Id: Iecf31cec0bf187155a97e5b6ccf8173b6aba82fc
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/173940
Tested-by: Jenkins
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>