Remove some useless information prints

Some env variables were useless and were adding noise.

undeployed/ci/jenkinsfile

@@ -7,20 +7,6 @@ pipeline {
             steps {
                 echo "Displaying Jenkins environment variables ..."
                 echo "BRANCH_NAME : ${env.BRANCH_NAME}"
-                echo "BUILD_NUMBER : ${env.BUILD_NUMBER}"
-                echo "BUILD_ID : ${env.BUILD_ID}"
-                echo "BUILD_DISPLAY_NAME : ${env.BUILD_DISPLAY_NAME}"
-                echo "JOB_NAME : ${env.JOB_NAME}"
-                echo "JOB_BASE_NAME : ${env.JOB_BASE_NAME}"
-                echo "BUILD_TAG : ${env.BUILD_TAG}"
-                echo "EXECUTOR_NUMBER : ${env.EXECUTOR_NUMBER}"
-                echo "NODE_NAME : ${env.NODE_NAME}"
-                echo "NODE_LABELS : ${env.NODE_LABELS}"
-                echo "WORKSPACE : ${env.WORKSPACE}"
-                echo "JENKINS_HOME : ${env.JENKINS_HOME}"
-                echo "JENKINS_URL : ${env.JENKINS_URL}"
-                echo "BUILD_URL : ${env.BUILD_URL}"
-                echo "JOB_URL : ${env.JOB_URL}"
                 echo "JOVIAN_WEB_DEPLOY_PATH : ${env.JOVIAN_WEB_DEPLOY_PATH}"
                 echo "JOVIAN_WEB_PREPROD_PATH : ${env.JOVIAN_WEB_PREPROD_PATH}"
                 echo "Done."