message: No longer gate unsupported file locking behind Linux as OS
diff: @@ -378,7 +378,6 @@ mod sys {
  // For targets in which they are the same, the duplicate pattern causes a warning.
  #[allow(unreachable_patterns)]
  Some(libc::ENOTSUP | libc::EOPNOTSUPP) => true,
  - #[cfg(any(target_os = "linux", target_os = "android"))]
  Some(libc::ENOSYS) => true,
  _ => false,
  }
  