where it was obsoleted by commits 2484de6728
(Remove non-const Sequence::begin()/end() in internal code, 2021-10-15) and
fb3c04bd19 (Drop non-const Sequence::operator[]
in internal code 2021-11-05).
Change-Id: I64683093afc48ddf2307dc1dee2302cf0b3cbecc
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/167110
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Jenkins
