message: Flip the default of pipelined execution for embeddings to False.
diff: @@ -296,7 +296,7 @@ class TPUEmbedding(object):
  master,
  optimization_parameters=None,
  cluster_def=None,
  - pipeline_execution_with_tensor_core=True):
  + pipeline_execution_with_tensor_core=False):
  """API for using TPU for embedding lookups.
  Args:
  