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

Change-Id: I9ee3318c79d3b59f272a2a5f89c38b26afa05974
Reviewed-on: https://gerrit.libreoffice.org/63775
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>