Its last usage was gone with d82fc206.

Change-Id: Ia891dd860edc305689804d02d4c74aa41804e484
Reviewed-on: https://gerrit.libreoffice.org/15911Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>