(code quality) run ruff rule to ban unused imports (#7313)

* remove unused imports

* fix AmazonConverseConfig

* fix test

* fix import

* ruff check fixes

* test fixes

* fix testing

* fix imports

litellm/llms/openai_like/chat/handler.py

@@ -4,40 +4,20 @@ OpenAI-like chat completion handler
 For handling OpenAI-like chat completions, like IBM WatsonX, etc.
 """
 
-import copy
 import json
-import os
-import time
-import types
-from enum import Enum
-from functools import partial
-from typing import Any, Callable, List, Literal, Optional, Tuple, Union
+from typing import Any, Callable, Optional, Union
 
 import httpx
 
 import litellm
 from litellm import LlmProviders
-from litellm.litellm_core_utils.core_helpers import map_finish_reason
 from litellm.llms.bedrock.chat.invoke_handler import MockResponseIterator
-from litellm.llms.custom_httpx.http_handler import (
-    AsyncHTTPHandler,
-    HTTPHandler,
-    get_async_httpx_client,
-)
+from litellm.llms.custom_httpx.http_handler import AsyncHTTPHandler, HTTPHandler
 from litellm.llms.databricks.streaming_utils import ModelResponseIterator
 from litellm.llms.openai.chat.gpt_transformation import OpenAIGPTConfig
 from litellm.llms.openai.openai import OpenAIConfig
 from litellm.types.utils import CustomStreamingDecoder, ModelResponse
-from litellm.utils import (
-    Choices,
-    CustomStreamWrapper,
-    EmbeddingResponse,
-    Message,
-    ProviderConfigManager,
-    TextCompletionResponse,
-    Usage,
-    convert_to_model_response_object,
-)
+from litellm.utils import CustomStreamWrapper, ProviderConfigManager
 
 from ..common_utils import OpenAILikeBase, OpenAILikeError
 from .transformation import OpenAILikeChatConfig