Update app.py

app.py

@@ -3,7 +3,7 @@ from src.helper import load_pdf, text_split, download_hugging_face_embeddings
 from langchain_community.llms import CTransformers
 from transformers import AutoModel, AutoTokenizer
 from dotenv import load_dotenv
-import torch, os, chromadb
+import torch, os
 import time
 from llama_index.llms.huggingface import HuggingFaceLLM
 from transformers import AutoModelForCausalLM