Remove the need to download the weights as ultralytics/ultralytics#7432…

… has been merged

examples/python-operator-dataflow/run.rs

@@ -1,5 +1,4 @@
 use dora_core::{get_pip_path, get_python_path, run};
-use dora_download::download_file;
 use dora_tracing::set_up_tracing;
 use eyre::{bail, ContextCompat, WrapErr};
 use std::path::Path;
@@ -74,12 +73,6 @@ async fn main() -> eyre::Result<()> {
     .await
     .context("maturin develop failed")?;
 
-    download_file(
-        "https://github.com/ultralytics/assets/releases/download/v0.0.0/yolov8n.pt",
-        Path::new("yolov8n.pt"),
-    )
-    .await
-    .context("Could not download weights.")?;
     let dataflow = Path::new("dataflow.yml");
     run_dataflow(dataflow).await?;