Update main_class.py

main_class.py

@@ -16,7 +16,6 @@ import gradio as gr
 # Inspired by https://github.com/Niez-Gharbi/PDF-RAG-with-Llama2-and-Gradio/tree/master
 # Inspired by https://github.com/mirabdullahyaser/Retrieval-Augmented-Generation-Engine-with-LangChain-and-Streamlit/tree/master
 
-api_key = os.getenv("OPENAI_API_KEY")
 
 class PDFChatBot:
     # Initialize the class with the api_key and the model_name