Disable dd4hep enabled builds due to Online/DD4HEP conflict
Temporary work around to conflict between DD4HEP and Online, as seen in the builds at
This MR will allow that MR to get merged, without breaking the Panoptes builds. Once that is done it will be a lot easier for the experts to investigate the DD4HEP/Online conflict, but just reverting the work arounds this MR introduces.