[gnome-font-viewer/barthalion/gnome-runtime-images-quay] Update (or drop) the Docker image used by Flatpak job

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit 2d01ba53e4ee17311412b406b29d450984ad299a
Author: Bartłomiej Piotrowski <b bpiotrowski pl>
Date:   Wed Jul 27 12:44:21 2022 +0200

    Update (or drop) the Docker image used by Flatpak job
    
    The gnome-runtime-images have been recently migrated to Quay. This is already reflected in the template.
    
    Please note this MR has been created semi-automatically. If it doesn't make sense, feel free to close it.

 .gitlab-ci.yml | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index befb351..57265bd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,7 +2,6 @@ include: 'https://gitlab.gnome.org/GNOME/citemplates/raw/master/flatpak/flatpak_
 
 flatpak:
   extends: '.flatpak'
-  image: 'registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master'
   variables:
     MANIFEST_PATH: 'flatpak/org.gnome.font-viewerDevel.json'
     RUNTIME_REPO: 'https://sdk.gnome.org/gnome-nightly.flatpakrepo'