Reverts parts of d552b4a549 and
97e2e73e87.
Instead of patching HarfBuzz, lets make use of the already mmap’ed file
we use with FreeType.
Change-Id: Ia81222118162a30cadb8c988bc477ad3ce36166d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/147410
Tested-by: Jenkins
Reviewed-by: Tor Lillqvist <tml@collabora.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
a881850d58