fix: remove useless test code (#3122)

### What problem does this PR solve?

remove useless test code

### Type of change

- [X] Refactoring

api/apps/conversation_app.py

@@ -141,9 +141,6 @@ def list_convsersation():
 @validate_request("conversation_id", "messages")
 def completion():
     req = request.json
-    # req = {"conversation_id": "9aaaca4c11d311efa461fa163e197198", "messages": [
-    #    {"role": "user", "content": "上海有吗？"}
-    # ]}
     msg = []
     for m in req["messages"]:
         if m["role"] == "system":

api/apps/sdk/session.py

@@ -76,9 +76,6 @@ def update(tenant_id,chat_id,session_id):
 @token_required
 def completion(tenant_id,chat_id):
     req = request.json
-    # req = {"conversation_id": "9aaaca4c11d311efa461fa163e197198", "messages": [
-    #    {"role": "user", "content": "上海有吗？"}
-    # ]}
     if not req.get("session_id"):
         conv = {
             "id": get_uuid(),