ci: Remove jessie builds for 2.11

.gitlab-ci.yml

@@ -82,20 +82,3 @@ upload/raspbian/stretch:
   <<: *upload
   dependencies:
     - build/raspbian/stretch
-
-build/raspbian/jessie:
-  <<: *build
-  variables:
-    DOCKER_IMAGE: raspbian/jessie
-
-test/raspbian/jessie:
-  <<: *test
-  variables:
-    DOCKER_IMAGE: raspbian/jessie
-  dependencies:
-    - build/raspbian/jessie
-
-upload/raspbian/jessie:
-  <<: *upload
-  dependencies:
-    - build/raspbian/jessie