Update app.py

app.py

@@ -9,12 +9,6 @@ from langchain.memory import ConversationBufferMemory as MEM,RedisChatMessageHis
 from langchain.schema import SystemMessage as SM,HumanMessage as HM, AIMessage as AM
 from langchain import hub
 import os
-import os
-import pprint
-
-os.environ["SERPER_API_KEY"] = ""
-from langchain_community.utilities import GoogleSerperAPIWrapper
-search = GoogleSerperAPIWrapper()
 from langchain_core.prompts.chat import ChatPromptTemplate, MessagesPlaceholder
 system = '''Respond to the human as helpfully and accurately as possible. You have access to the following tools: