Remove loader_impl._parse_saved_model alias

All remaining uses of the alias have been moved to the no underscore parse_saved_model

PiperOrigin-RevId: 413482223
Change-Id: I1707b4e63a7f5e0982a490318f003eb40cb58f52
diff --git a/tensorflow/python/saved_model/loader_impl.py b/tensorflow/python/saved_model/loader_impl.py
index 82c061d..4d97a92 100644
--- a/tensorflow/python/saved_model/loader_impl.py
+++ b/tensorflow/python/saved_model/loader_impl.py
@@ -54,7 +54,7 @@
     IOError: If the saved model file does not exist, or cannot be successfully
     parsed. Missing graph debug info file is fine.
   """
-  saved_model = _parse_saved_model(export_dir)
+  saved_model = parse_saved_model(export_dir)
 
   debug_info_path = file_io.join(
       saved_model_utils.get_debug_dir(export_dir),
@@ -118,11 +118,6 @@
         f"{constants.SAVED_MODEL_FILENAME_PB}}}")
 
 
-# TODO(b/120594573): Make this symbol also available as private, so that
-# tensorflow_transform and tensorflow_estimator do not break.
-_parse_saved_model = parse_saved_model
-
-
 def get_asset_tensors(export_dir, meta_graph_def_to_load, import_scope=None):
   """Gets the asset tensors, if defined in the meta graph def to load.