jenkins/mkcloud: dont send emails
jenkins/mkcloud: dont send emails

this has become too spammy with all the test variants we ran

gosipyan/automation,vmoravec/automation,SUSE-Cloud/automation,SUSE-Cloud/automation,gosipyan/automation,vmoravec/automation,gosipyan/automation,aspiers/automation,gosipyan/automation,aspiers/automation,aspiers/automation,vmoravec/automation,SUSE-Cloud/automation,aspiers/automation,SUSE-Cloud/automation,vmoravec/automation