code: public void deleteNote(Serializable projectId, Integer issueId, GitlabNote noteToDelete) throws IOException {
          String tailUrl = GitlabProject.URL + "/" + sanitizeProjectId(projectId)
                  + GitlabIssue.URL + "/" + issueId + GitlabNote.URL
                  + "/" + noteToDelete.getId();
          retrieve().method(DELETE).to(tailUrl, GitlabNote.class);
      }
docs: Delete an Issue Note
  
  @param projectId    The project id
  @param issueId      The issue id
  @param noteToDelete The note to delete
  @throws IOException on gitlab api call error