ensure the intitializer object contains the node field (#4301)
ensure the intitializer object contains the node field (#4301)

BUG
* ensure the intitializer object contains the node field

* remove doc related file
tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs,tensorflow/tfjs