1 files changed, 3 insertions, 6 deletions
diff --git a/cli/tools/coverage/range_tree.rs b/cli/tools/coverage/range_tree.rs
index aca8939ee..87ddd8baa 100644
--- a/cli/tools/coverage/range_tree.rs
+++ b/cli/tools/coverage/range_tree.rs
@@ -71,10 +71,7 @@ impl<'rt> RangeTree<'rt> {
     (rta.alloc(left), rta.alloc(right))
   }
 
-  pub fn normalize<'a>(
-    rta: &'a RangeTreeArena<'a>,
-    tree: &'a mut RangeTree<'a>,
-  ) -> &'a mut RangeTree<'a> {
+  pub fn normalize<'a>(tree: &'a mut RangeTree<'a>) -> &'a mut RangeTree<'a> {
     tree.children = {
       let mut children: Vec<&'a mut RangeTree<'a>> = Vec::new();
       let mut chain: Vec<&'a mut RangeTree<'a>> = Vec::new();
@@ -96,7 +93,7 @@ impl<'rt> RangeTree<'rt> {
               head.children.push(sub_child);
             }
           }
-          children.push(RangeTree::normalize(rta, head));
+          children.push(RangeTree::normalize(head));
         }
         chain.push(child)
       }
@@ -110,7 +107,7 @@ impl<'rt> RangeTree<'rt> {
             head.children.push(sub_child);
           }
         }
-        children.push(RangeTree::normalize(rta, head));
+        children.push(RangeTree::normalize(head));
       }
 
       if children.len() == 1