Remove unused import and variable assignments.

app.py

@@ -5,11 +5,9 @@ from datetime import datetime
 from pathlib import Path
 
 import gradio as gr
-from dotenv import load_dotenv
 from huggingface_hub import CommitScheduler, HfApi
 from huggingface_hub.utils import HfHubHTTPError
 
-load_dotenv()
 
 HF_TOKEN = os.getenv("HF_TOKEN")