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

Change-Id: I8daf57df5b8f9c609d4f3ca44bae7366addceb6c
Reviewed-on: https://gerrit.libreoffice.org/69151
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>