OP#213 permanently remove branch deleting

Jenkinsfile

@@ -89,9 +89,6 @@ stage('build and push image to gitlab') {
                     sh '''
                         git checkout master
                         git pull origin master
-                        git branch
-                        git branch -D development
-                        git branch -D jenkins-build-$BUILD_NUMBER
                         git remote add master https://gitea.confdroid.com/confdroid/confdroid_pgbouncer.git
                         git -c credential.helper="!f() { echo username=${GITEA_USER}; echo password=${GITEA_TOKEN}; }; f" \
                         push master --mirror