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

Change-Id: Ic14d2e66434817bcb7bd1e2b707f81d720d596b6
Reviewed-on: https://gerrit.libreoffice.org/71007
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>