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

Change-Id: Ie63df2185e0586d1fc7db4ed2825a7aa8d8dde73
Reviewed-on: https://gerrit.libreoffice.org/53950Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>