code: @BetaApi
    public final Operation deleteBackendService(String backendService) {
  
      DeleteBackendServiceHttpRequest request =
          DeleteBackendServiceHttpRequest.newBuilder().setBackendService(backendService).build();
      return deleteBackendService(request);
    }
docs: Deletes the specified BackendService resource.
  
  <p>Sample code:
  
  <pre><code>
  try (BackendServiceClient backendServiceClient = BackendServiceClient.create()) {
  ProjectGlobalBackendServiceName backendService = ProjectGlobalBackendServiceName.of("[PROJECT]", "[BACKEND_SERVICE]");
  Operation response = backendServiceClient.deleteBackendService(backendService.toString());
  }
  </code></pre>
  
  @param backendService Name of the BackendService resource to delete.
  @throws com.google.api.gax.rpc.ApiException if the remote call fails