fix clippy

Author: zhuqi-lucas

Cargo.lock

@@ -48,7 +48,6 @@ datafusion-expr = { workspace = true }
 datafusion-expr-common = { workspace = true }
 datafusion-functions-aggregate-common = { workspace = true }
 datafusion-physical-expr-common = { workspace = true }
-half = { workspace = true }
 hashbrown = { workspace = true }
 indexmap = { workspace = true }
 itertools = { workspace = true, features = ["use_std"] }

datafusion/physical-expr/Cargo.toml

@@ -714,8 +714,7 @@ mod tests {
         let sort_count = count_sorts_in_plan(&result);
         assert!(
             sort_count < 2,
-            "Expected at least one sort to be removed from nested sorts, found {} sorts",
-            sort_count
+            "Expected at least one sort to be removed from nested sorts, found {sort_count} sorts"
         );
 
         Ok(())
@@ -759,7 +758,7 @@ mod tests {
             count += 1;
         }
         for child in plan.children() {
-            count += count_sorts_in_plan(&child);
+            count += count_sorts_in_plan(child);
         }
         count
     }