Jenkinsfile: don't try to send mails. Doesn't work.

Jenkinsfile

@@ -50,10 +50,5 @@ pipeline {
         always {
             sh 'rm -rf venv'
         }
-        changed {
-            emailext body: "Check console output at ${env.BUILD_URL}",
-                recipientProviders: [[$class: 'DevelopersRecipientProvider'], [$class: 'RequesterRecipientProvider']],
-                subject: "${buildStatus}: Job '${env.JOB_NAME} [${env.BUILD_NUMBER}]'"
-        }
     }
 }