The code was added July 2008 as a way to delegate mtf action
rendering to external services.

Change-Id: I5b2277fada1a8ad85e82cb2c10c822df09da836a
Reviewed-on: https://gerrit.libreoffice.org/26371Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: jan iversen <jani@documentfoundation.org>
Tested-by: jan iversen <jani@documentfoundation.org>