chore(tvix/nix-compat): drop useless clone

HashAlgo implements Copy, no need to clone here.

Change-Id: Ief11d2cfbd4fd0cd44224c7ddd575f518edbbd55
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8989
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>

tvix/nix-compat/src/nixhash/mod.rs

@@ -284,7 +284,7 @@ mod tests {
     fn from_str(digest: &[u8], algo: HashAlgo) {
         let expected_hash = NixHash {
             digest: digest.to_vec(),
-            algo: algo.clone(),
+            algo: algo,
         };
         // parse SRI
         {