Update apis/chat_api.py

apis/chat_api.py

@@ -23,8 +23,7 @@ class ChatAPIApp:
 
     def get_available_models(self):
         f = open('lang_name.json')
-        data = json.load(f)
-        self.available_models = data
+        self.available_models = json.load(f)
         return self.available_models
 
     class ChatCompletionsPostItem(BaseModel):