Found with bin/find-unneeded-includes
Only removal proposals are dealt with here.

Change-Id: Ibf5b7a813910f2ab37d8705b99bd8a9a19706c43
Reviewed-on: https://gerrit.libreoffice.org/65061
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>