chore: Remove unused import statements

The commit removes unused import statements in the `chat.py`, `openai.py`, and `pipeline.py` files to improve code cleanliness and reduce potential confusion.

devchat/llm/chat.py

@@ -3,8 +3,6 @@
 import sys
 from functools import wraps
 
-import openai
-
 from devchat.memory import ChatMemory
 
 from .openai import (

devchat/llm/openai.py

@@ -188,12 +188,7 @@ def chat_completion_no_stream_return_json(messages: List[Dict], llm_config: Dict
         ),
         times=3,
     ),
-    lambda err: {
-        "content": None,
-        "function_name": None,
-        "parameters": "",
-        "error": err
-    },
+    lambda err: {"content": None, "function_name": None, "parameters": "", "error": err},
 )
 
 chat_call_completion_stream = exception_handle(
@@ -212,6 +207,6 @@ def chat_completion_no_stream_return_json(messages: List[Dict], llm_config: Dict
         "function_name": None,
         "parameters": "",
         "tool_calls": [],
-        "error": err
+        "error": err,
     },
 )

devchat/llm/pipeline.py

@@ -2,8 +2,6 @@
 import time
 from typing import Dict
 
-import openai
-
 from devchat.ide import IDEService
 
 

devchat/openai/http_openai.py

@@ -80,8 +80,7 @@ def stream_request(api_key, api_base, data):
                 connection.set_tunnel(url)
             else:
                 connection = http.client.HTTPSConnection(
-                    url,
-                    context=ssl._create_unverified_context()
+                    url, context=ssl._create_unverified_context()
                 )
         else:
             if proxy_setting["host"]: