code: func (s *ProjectsService) DeleteDashboard(projectName, dashboardID string, input *DashboardInput) (*Response, error) {
  	u := fmt.Sprintf("projects/%s/dashboards/%s", url.QueryEscape(projectName), url.QueryEscape(dashboardID))
  	return s.client.DeleteRequest(u, input)
  }
docs: // DeleteDashboard deletes a project dashboard.
  // Currently only supported for the default dashboard.
  //
  // The request body does not need to include a DashboardInput entity if no commit message is specified.
  // Please note that some proxies prohibit request bodies for DELETE requests.
  //
  // Gerrit API docs: https://gerrit-review.googlesource.com/Documentation/rest-api-projects.html#delete-dashboard