Apply suggestion from @oech3

Co-authored-by: oech3 <79379754+oech3@users.noreply.github.com>

Author: mattsu2020

src/uucore/src/lib/features/safe_traversal.rs

@@ -390,7 +390,6 @@ impl DirFd {
     /// symlinks, then chmods via /proc/self/fd/{fd}. This avoids the TOCTOU
     /// race because the fd pins the inode.
     ///
-    /// Uses rustix safe wrappers to avoid raw `unsafe` FFI calls.
     #[cfg(target_os = "linux")]
     fn chmod_at_via_opath(&self, name: &std::ffi::CStr, mode: u32) -> io::Result<()> {
         use rustix::fs::{Mode, OFlags, chmod, openat};