ci: we use gitlab readthedocs integration which is better

.gitlab-ci.yml

@@ -275,19 +275,6 @@ py3-from-forge-misc:
       junit: /builds/cubicweb/cubicweb/from-forge-misc.xml
     expire_in: 2 weeks
 
-trigger-readthedocs:
-  rules:
-    - if: '$TRIGGERED_FROM_OTHER_PROJECT'
-      when: never
-    - if: '$CI_COMMIT_REF_NAME == "branch/default"'
-      changes:
-        - cubicweb/**/*
-        - doc/**/*
-  stage: after-tests
-  script:
-    # regarding the " everywhere when there is a '%': yaml is extremly weird when % are involved
-    - curl -X POST -d "token=${READTHEDOCS_TOKEN}" https://readthedocs.org/api/v2/webhook/cubicweb/33537/ -w "\nhttp code:"\ "%{http_code}\n" -f
-
 sonarqube:
   stage: qa
   image: sonarsource/sonar-scanner-cli