Remove unavailable images from list

$ docker pull ghcr.io/scipp-atlas/mario-mapyde/madgraph:latest
Error response from daemon: Head "https://ghcr.io/v2/scipp-atlas/mario-mapyde/madgraph/manifests/latest": unauthorized
$ docker pull ghcr.io/scipp-atlas/mario-mapyde/delphes:latest
Error response from daemon: Head "https://ghcr.io/v2/scipp-atlas/mario-mapyde/delphes/manifests/latest": unauthorized

Author: jthiltges

docker_images.txt

@@ -544,10 +544,6 @@ ericmjonas/osg:*
 jcha40/chexmix:latest
 jcha40/python_env:latest
 
-# SCIPP, UCSC
-ghcr.io/scipp-atlas/mario-mapyde/madgraph:latest
-ghcr.io/scipp-atlas/mario-mapyde/delphes:latest
-
 # University of Wisconsin - Jason Kwan Lab
 jasonkwan/autometa:latest