Update app.py

app.py

@@ -24,7 +24,6 @@ from langchain.memory import ConversationBufferMemory
 from gtts import gTTS
 from io import BytesIO
 from langchain.chains import ConversationalRetrievalChain
-from streamlit_modal import Modal
 import streamlit.components.v1 as components
 #from sentence_transformers import SentenceTransformer
 from langchain.document_loaders import UnstructuredMarkdownLoader