Fix import bug

folding_studio_demo/app.py

@@ -13,7 +13,6 @@ from folding_studio_demo.correlate import (
     make_correlation_plot,
 )
 from folding_studio_demo.predict import predict, predict_comparison
-from folding_studio_demo.config import BLUE, PURPLE
 
 logger = logging.getLogger(__name__)