Revert "Switch to docker-ce repository"

This reverts commit cf05d875b2f39155acd5ec6b73804093feaf7bf4.
diff --git a/jenkins/client/job/docker/init.yml b/jenkins/client/job/docker/init.yml
index b6bab31..99e230b 100644
--- a/jenkins/client/job/docker/init.yml
+++ b/jenkins/client/job/docker/init.yml
@@ -23,8 +23,8 @@
               tags: "2.32"
               dockerfile: "Dockerfile"
             - name: jenkins
-              branch: "2.73"
-              tags: "2.73 latest"
+              branch: "2.71"
+              tags: "2.71 latest"
               dockerfile: "Dockerfile"
             - name: phpldapadmin
               branch: "master"