remove specific emailing from Jenkinsfile for xaibox

dockerfiles/services/nextcloud/Jenkinsfile

@@ -59,19 +59,4 @@ pipeline {
         }
 
     }
-    post {
-      always {
-        emailext attachLog: true,
-            to: ${DEFAULT_RECIPIENTS}
-      }
-      unsuccessful {
-        emailext attachLog: true,
-            to: ${DEFAULT_RECIPIENTS}
-      }
-      changed {
-        emailext attachLog: true,
-            to: ${DEFAULT_RECIPIENTS}
-      }
-    }
-
 }