Update app.py

app.py

@@ -16,7 +16,6 @@ from langchain.tools.render import format_tool_to_openai_function
 from langchain_community.utilities.google_serper import GoogleSerperAPIWrapper
 from langchain_core.runnables import ConfigurableField
 from langchain_core.tools import Tool
-from langserve import add_routes
 from langchain.prompts import PromptTemplate
 import requests
 from langchain.embeddings.openai import OpenAIEmbeddings