code: func (s *UserService) Delete(username string) (*Response, error) {
  	apiEndpoint := fmt.Sprintf("/rest/api/2/user?username=%s", username)
  	req, err := s.client.NewRequest("DELETE", apiEndpoint, nil)
  	if err != nil {
  		return nil, err
  	}
  
  	resp, err := s.client.Do(req, nil)
  	if err != nil {
  		return resp, NewJiraError(resp, err)
  	}
  	return resp, nil
  }
docs: // Delete deletes an user from JIRA.
  // Returns http.StatusNoContent on success.
  //
  // JIRA API docs: https://developer.atlassian.com/cloud/jira/platform/rest/#api-api-2-user-delete