[gnome-calculator] Drop always failing snapcraft build from CI

[Robert Roth <robertroth src gnome org>]

commit 0092059830765ca7176af294295a0bdf55d8e37e
Author: Robert Roth <robert roth off gmail com>
Date:   Thu Jun 4 14:11:59 2020 +0300

    Drop always failing snapcraft build from CI

 .gitlab-ci.yml | 11 -----------
 1 file changed, 11 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 89ab4ca8..e0044267 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -35,17 +35,6 @@ build:ubuntu:
   <<: *ubuntu_before_script
   <<: *meson_build
 
-build:snap:
-  stage: build
-  image: ubuntudesktop/gnome-3-34-1804
-  before_script:
-    - apt-get update
-  script: snapcraft
-  allow_failure: true
-  artifacts:
-    paths: ['./*.snap']
-    expire_in: 3 days
-
 test:ubuntu:
   dependencies:
     - build:ubuntu