[CI] Remove unused imports with Ruff to pre-commit config, only to...

[CI] Remove unused imports with Ruff to pre-commit config, only to benchmarks/docs/examples folder (#3969)

examples/runtime/token_in_token_out/token_in_token_out_vlm_server.py

@@ -13,9 +13,8 @@ from PIL import Image
 from transformers import AutoProcessor
 
 from sglang.lang.chat_template import get_chat_template_by_model_path
-from sglang.srt.hf_transformers_utils import get_tokenizer
 from sglang.test.test_utils import DEFAULT_IMAGE_URL, is_in_ci
-from sglang.utils import print_highlight, terminate_process, wait_for_server
+from sglang.utils import terminate_process, wait_for_server
 
 if is_in_ci():
     from docs.backend.patch import launch_server_cmd