Improve configs - ModelConfig (#17130)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

tests/engine/test_arg_utils.py

@@ -8,7 +8,7 @@ from typing import Literal, Optional
 
 import pytest
 
-from vllm.config import PoolerConfig, config
+from vllm.config import config
 from vllm.engine.arg_utils import (EngineArgs, contains_type, get_kwargs,
                                    get_type, is_not_builtin, is_type,
                                    literal_to_kwargs, nullable_kvs,
@@ -222,17 +222,6 @@ def test_prefix_cache_default():
     assert not engine_args.enable_prefix_caching
 
 
-def test_valid_pooling_config():
-    parser = EngineArgs.add_cli_args(FlexibleArgumentParser())
-    args = parser.parse_args([
-        '--override-pooler-config',
-        '{"pooling_type": "MEAN"}',
-    ])
-    engine_args = EngineArgs.from_cli_args(args=args)
-    assert engine_args.override_pooler_config == PoolerConfig(
-        pooling_type="MEAN", )
-
-
 @pytest.mark.parametrize(
     ("arg"),
     [