uvc: avoid extra response after data

server/src/bin/lesavka-uvc.rs

@@ -525,13 +525,7 @@ fn handle_data(
                 );
             }
         }
-        if debug {
+        // No extra response required; ep0 data stage completion ends the control transfer.
-            eprintln!(
-                "[lesavka-uvc] send SET_CUR status sel={} len=0",
-                p.selector
-            );
-        }
-        let _ = send_response(fd, uvc_send_response, &[]);
     }
 }