[fix] Do not push to github

.gitlab-ci.yml

 stages:
-  - github-sync
   - build
   - test
   - pages
@@ -7,26 +6,26 @@ stages:
   - prerelease
   - release
 
-push_to_github:
-  stage: github-sync
-  variables:
-    GIT_STRATEGY: none
-  tags:
-    - github
-  script:
-    - rm -rf ./*
-    - rm -rf .git
-    - git clone --mirror $CI_REPOSITORY_URL .
-    - git remote add github $GITHUB_URL_AND_KEY
-    - git config --global user.email "contact@duniter.org"
-    - git config --global user.name "Duniter"
-    # Job would fail if we don't remove refs about pull requests
-    - bash -c "cat packed-refs | grep -v 'refs/pull' > packed-refs-new; echo 'Removed pull refs.'"
-    - mv packed-refs-new packed-refs
-    - bash -c "git push --force --mirror github 2>&1 | grep -v duniter-gitlab; echo $?"
-  only:
-    - master
-    - dev
+#push_to_github:
+#  stage: github-sync
+#  variables:
+#    GIT_STRATEGY: none
+#  tags:
+#    - github
+#  script:
+#    - rm -rf ./*
+#    - rm -rf .git
+#    - git clone --mirror $CI_REPOSITORY_URL .
+#    - git remote add github $GITHUB_URL_AND_KEY
+#    - git config --global user.email "contact@duniter.org"
+#    - git config --global user.name "Duniter"
+#    # Job would fail if we don't remove refs about pull requests
+#    - bash -c "cat packed-refs | grep -v 'refs/pull' > packed-refs-new; echo 'Removed pull refs.'"
+#    - mv packed-refs-new packed-refs
+#    - bash -c "git push --force --mirror github 2>&1 | grep -v duniter-gitlab; echo $?"
+#  only:
+#    - master
+#    - dev
 
 .nvm_env: &nvm_env
   tags: