SubtreeLeaf::from_smt_leaf() was only used in tests

src/merkle/smt/mod.rs

@@ -627,16 +627,6 @@ pub struct SubtreeLeaf {
     pub hash: RpoDigest,
 }
 
-impl SubtreeLeaf {
-    #[cfg_attr(not(test), allow(dead_code))]
-    fn from_smt_leaf(leaf: &crate::merkle::SmtLeaf) -> Self {
-        Self {
-            col: leaf.index().index.value(),
-            hash: leaf.hash(),
-        }
-    }
-}
-
 /// Helper struct to organize the return value of [`SparseMerkleTree::sorted_pairs_to_leaves()`].
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub(crate) struct PairComputations<K, L> {
@@ -777,6 +767,13 @@ mod test {
         Felt, Word, ONE,
     };
 
+    fn smtleaf_to_subtree_leaf(leaf: &SmtLeaf) -> SubtreeLeaf {
+        SubtreeLeaf {
+            col: leaf.index().index.value(),
+            hash: leaf.hash(),
+        }
+    }
+
     #[test]
     fn test_sorted_pairs_to_leaves() {
         let entries: Vec<(RpoDigest, Word)> = vec![
@@ -825,7 +822,7 @@ mod test {
                 // Subtree 2.
                 vec![next_leaf()],
             ]
-            .map(|subtree| subtree.into_iter().map(SubtreeLeaf::from_smt_leaf).collect())
+            .map(|subtree| subtree.into_iter().map(smtleaf_to_subtree_leaf).collect())
             .to_vec();
             assert_eq!(control_leaves_iter.next(), None);
             control_subtree_leaves