removed langchain imports

agent_tools.py

@@ -1,11 +1,8 @@
 from bs4 import BeautifulSoup
-from langchain_community.document_loaders import TextLoader, PyPDFLoader, Docx2txtLoader, CSVLoader
-from langchain_community.retrievers import BM25Retriever
-from langchain_text_splitters import RecursiveCharacterTextSplitter
+from smolagents import tool, Tool
 import markdownify
 import openpyxl
 import requests
-from smolagents import tool, Tool
 import tabulate
 import whisper