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

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit 295f17c1af72d3446c20f19f4383378e4af19756
Author: Bartłomiej Piotrowski <b bpiotrowski pl>
Date:   Wed Jul 27 12:36:58 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 dbc0c413..06e8ff0e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,7 +9,6 @@ variables:
   BUNDLE: "org.gnome.Devhelp.flatpak"
 
 flatpak:
-  image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master
   stage: build
   extends: .flatpak
   variables: