[CI] Remove deb stage from .gitlab-ci.yaml - superseded by the ability to "make deb" in branding

.gitlab-ci.yml

@@ -81,24 +81,6 @@ snap:
      - riseup-vpn*.snap
    expire_in: 1 month
 
-deb:
-  image: registry.0xacab.org/leap/docker/bitmask-vpn:latest
-  stage: build
-  allow_failure: true
-  script:
-    - mkdir -p /go/src/0xacab.org/leap/
-    - ln -s "$(pwd)" ${APP_PATH}
-    - git clone https://0xacab.org/leap/riseup_vpn
-    - cd riseup_vpn
-    - make build_deb
-  tags:
-    - linux
-  artifacts:
-    name: debian_$CI_COMMIT_REF_NAME
-    paths:
-      - riseup_vpn/dist/*.deb
-    expire_in: 1 month
-
 # osx_installer:
 #   stage: build
 #   allow_failure: true