Fix clippy::needless_borrow issues in fbcode/eden/mononoke/servers/scs/scs_methods/src/methods/repo

Reviewed By: dtolnay

Differential Revision: D89164187

fbshipit-source-id: 05c0a40546808c5056df4c2816fe71fddeac3496

Author: generatedunixname89002005320881

eden/mononoke/servers/scs/scs_methods/src/methods/repo/create_commit.rs

@@ -430,7 +430,7 @@ impl SourceControlServiceImpl {
 
         let top_id = match params.top.as_ref() {
             Some(top) => Some(
-                self.changeset_id(&repo, &top)
+                self.changeset_id(&repo, top)
                     .await
                     .context("failed to resolve top commit")?,
             ),