message: Cleanup unused field in keras network.
diff: @@ -219,8 +219,6 @@ class Network(base_layer.Layer):
  self._maybe_create_attribute('_is_compiled', False)
  self._maybe_create_attribute('optimizer', None)
  - self._scope = None # Never used.
  - self._reuse = None # Never used.
  if context.executing_eagerly():
  self._graph = None
  else:
  