message: `initialized_value` should not be a property on Strategy variable classes.
diff: @@ -956,7 +956,6 @@ class TPUMirroredVariable(variables_lib.Variable):
  raise NotImplementedError(
  "numpy() is only available when eager execution is enabled.")
  - @property
  def initialized_value(self):
  return self.primary.initialized_value()
  @@ -1678,7 +1677,6 @@ class AggregatingVariable(variables_lib.Variable):
  def initializer(self):
  return self._v.initializer
  - @property
  def initialized_value(self):
  return self._v.initialized_value()
  