chore: deprecate merkle module of stdlib

noir_stdlib/src/merkle.nr

@@ -2,6 +2,7 @@
 // Currently we assume that it is a binary tree, so depth k implies a width of 2^k
 // XXX: In the future we can add an arity parameter
 // Returns the merkle root of the tree from the provided leaf, its hashpath, using a pedersen hash function.
+#[deprecated("This function will be removed from the stdlib in version 1.0.0-beta.4")]
 pub fn compute_merkle_root<let N: u32>(leaf: Field, index: Field, hash_path: [Field; N]) -> Field {
     let index_bits: [u1; N] = index.to_le_bits();
     let mut current = leaf;