Update app.py

app.py

@@ -2,7 +2,6 @@ from langchain.document_loaders import HuggingFaceDatasetLoader
 from langchain_community.document_loaders.csv_loader import CSVLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter, CharacterTextSplitter
 from langchain.embeddings import HuggingFaceEmbeddings
-from langchain.vectorstores import FAISS
 from transformers import AutoTokenizer, AutoModelForQuestionAnswering
 from transformers import AutoTokenizer, pipeline
 from langchain import HuggingFacePipeline