fixup: fix unrelated clippy warnings

Signed-off-by: Doru Blânzeanu <[email protected]>

Author: dblnz

src/hyperlight_host/src/sandbox/initialized_multi_use.rs

@@ -162,6 +162,7 @@ impl MultiUseSandbox {
     /// Map the contents of a file into the guest at a particular address
     ///
     /// Returns the length of the mapping
+    #[allow(dead_code)]
     #[instrument(err(Debug), skip(self, _fp, _guest_base), parent = Span::current())]
     pub(crate) fn map_file_cow(&mut self, _fp: &Path, _guest_base: u64) -> Result<u64> {
         #[cfg(windows)]