Update examples/keras_rs/hstu.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: LakshmiKalaKadali

examples/keras_rs/hstu.py

@@ -542,7 +542,7 @@ def compute_output_shape(self, input_shape):
 """### Inference"""
 
 
-def load_movie_titles(dataset_name="ml-1m"):
+def load_movie_titles():
     """
     Loads movie titles from the MovieLens dataset.
     """