Remove print

src/main.rs

@@ -73,7 +73,6 @@ fn main() -> Result<(), Error> {
 
     let mut writer = interface.endpoint::<Bulk, Out>(0x01)?.writer(4096);
 
-    println!("{}", img.as_flat_samples().samples.len());
     writer.write_all(img.as_flat_samples().samples)?;
     writer.flush()?;