fix: remove unidirectional specification from edge type creation in schema

Author: tae898

bindings/python/examples/05_csv_import_graph.py

@@ -1406,8 +1406,8 @@ def create_schema(db: Any, create_indexes: bool = True):
     schema_commands = [
         "CREATE VERTEX TYPE User",
         "CREATE VERTEX TYPE Movie",
-        "CREATE EDGE TYPE RATED UNIDIRECTIONAL",
-        "CREATE EDGE TYPE TAGGED UNIDIRECTIONAL",
+        "CREATE EDGE TYPE RATED",
+        "CREATE EDGE TYPE TAGGED",
         "CREATE PROPERTY User.userId INTEGER",
         "CREATE PROPERTY Movie.movieId INTEGER",
         "CREATE PROPERTY Movie.title STRING",