Eliminate no-op import alias '...tensor_tuple as tensor_tuple'

PiperOrigin-RevId: 311602448

Author: csuter

tensorflow_probability/python/layers/distribution_layer.py

@@ -47,7 +47,7 @@
 from tensorflow_probability.python.distributions import variational_gaussian_process as variational_gaussian_process_lib
 from tensorflow_probability.python.internal import distribution_util as dist_util
 from tensorflow_probability.python.layers.internal import distribution_tensor_coercible as dtc
-from tensorflow_probability.python.layers.internal import tensor_tuple as tensor_tuple
+from tensorflow_probability.python.layers.internal import tensor_tuple
 from tensorflow.python.keras.utils import tf_utils as keras_tf_utils  # pylint: disable=g-direct-tensorflow-import