Update requirements.txt

requirements.txt

@@ -1,9 +1,4 @@
 streamlit
-openai
-PyPDF2
 requests
-tiktoken  # optional: token-based chunking
-pytesseract  # optional: OCR for scanned PDFs (requires Tesseract installed separately)
-Pillow       # imaging support used with pytesseract
-faiss-cpu    # optional: local vector store (or use faiss-cpu-binary)
-python-dotenv  # optional: load .env files locally
+PyPDF2
+python-dotenv