How to remove default description message while creating Jira ticket through jenkins pipeline

[dinesh.anumukonda]

I'm creating Jira ticket through Jenkins pipeline. 

Jenkins pipeline creates ticket and also add the required description and other fields automatically. It also prints a message at the end of the ticket description. I'm looking for the help in order to remove this message. I have not added such Jenkins configuration which prints this message. Please let me know how can we ignore the message while creating ticket through Jenkins pipeline.

Message (printed at the end of ticket description- Automatically created by: User from Build URL

My Jenkins configuration -

def issueVar = [fields: [ project: [key: 'RWT'],
summary:"test summary",
description: "sample test description",
components: [[name: 'ABC']],
issuetype: [name: 'Task']]]
def newIssue = jiraNewIssue issue: issueVar, site: 'Jira'
echo newIssue.data.key