Fix doctest more (for docs/source/en) (#30247)

* fix

* fix

---------

Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>

docs/source/en/model_doc/starcoder2.md

@@ -42,11 +42,10 @@ These ready-to-use checkpoints can be downloaded and used via the HuggingFace Hu
 >>> prompt = "def print_hello_world():"
 
 >>> model_inputs = tokenizer([prompt], return_tensors="pt").to("cuda")
->>> model.to(device)
 
 >>> generated_ids = model.generate(**model_inputs, max_new_tokens=10, do_sample=False)
 >>> tokenizer.batch_decode(generated_ids)[0]
-"def print_hello_world():\n\treturn 'Hello World!'"
+'def print_hello_world():\n    print("Hello World!")\n\ndef print'
 ```
 
 ## Starcoder2Config