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

Also recheck include/unotools/*

Change-Id: I3b8489aca69fbe80fa4a21748ac3c872d0d266c4
Reviewed-on: https://gerrit.libreoffice.org/71883
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>