Remove dependency duplicate (#719)

pyproject.toml

@@ -30,7 +30,6 @@ dependencies = [
     "uvicorn>=0.30.0",
     "loguru>=0.6.0",
     "loralib>=0.1.2",
-    "natsort>=8.4.0",
     "pyrootutils>=1.0.4",
     "vector_quantize_pytorch==1.14.24",
     "resampy>=0.4.3",