Update sample code

Author: swibi-ttd

examples/sample_token_generate_refresh.py

@@ -21,8 +21,7 @@ def _usage():
 
 print("Generating Token")
 try:
-    # Always use .do_not_generate_tokens_for_opted_out(), which applies policy=1. Support for policy=0 will be removed soon.
-    token_generate_response = publisher_client.generate_token(TokenGenerateInput.from_email("testpythonsdksampletokengenerate@email.com").do_not_generate_tokens_for_opted_out())
+    token_generate_response = publisher_client.generate_token(TokenGenerateInput.from_email("testpythonsdksampletokengenerate@email.com"))
 except Exception as e:
     print(e)
     # decide how to handle exception