message: Fix `//tensorflow/python/ipu:prng_stability_models_test` in TF2.5
  Summary: TF2.5 Only
  Reviewers: #tensorflow, #framework_ip_review_-_any_oss_or_third-party_code_use_has_been_approved, vladimirm
  Subscribers: vladimirm, samuelh
  Maniphest Tasks: T53746
diff: @@ -430,7 +430,6 @@ class PrngStabilityModelsKerasTest(test_util.TensorFlowTestCase):
  normalizer = preprocessing.Normalization(input_shape=[
  1,
  ], axis=None)
  - normalizer.adapt(horsepower)
  model = keras.Sequential([normalizer, keras.layers.Dense(units=1)])
  model.set_pipelining_options(gradient_accumulation_steps_per_replica=4)
  