:recycle: [Refactor] Example Codes: Remove outdated snippets

examples/chat_with_openai.py

@@ -1,15 +1,10 @@
 from openai import OpenAI
 
+# If runnning this service with proxy, you might need to unset `http(s)_proxy`.
 base_url = "http://localhost:22222"
 api_key = "sk-xxxxx"
 
-
 client = OpenAI(base_url=base_url, api_key=api_key)
-
-extra_body = {
-    "invocation_id": 1,
-}
-
 response = client.chat.completions.create(
     model="precise",
     messages=[
@@ -19,15 +14,12 @@ response = client.chat.completions.create(
         }
     ],
     stream=True,
-    extra_body=extra_body,
 )
 
-# print(response)
 for chunk in response:
     if chunk.choices[0].delta.content is not None:
         print(chunk.choices[0].delta.content, end="", flush=True)
     elif chunk.choices[0].finish_reason == "stop":
         print()
     else:
-        # print(chunk)
         pass

examples/chat_with_post.py

@@ -7,7 +7,6 @@ import re
 chat_api = "http://localhost:22222"
 api_key = "sk-xxxxx"
 requests_headers = {}
-
 requests_payload = {
     "model": "precise",
     "messages": [
@@ -17,7 +16,6 @@ requests_payload = {
         }
     ],
     "stream": True,
-    "invocation_id": 1,
 }
 
 with httpx.stream(