diff --git a/yarn-project/circuits.js/src/contract/contract_class.ts b/yarn-project/circuits.js/src/contract/contract_class.ts
index b56b96cdf6c..8d775228503 100644
--- a/yarn-project/circuits.js/src/contract/contract_class.ts
+++ b/yarn-project/circuits.js/src/contract/contract_class.ts
@@ -52,6 +52,6 @@ export function getContractClassFromArtifact(
  * Returns zero for consistency with Noir.
  */
 function getVerificationKeyHash(_verificationKeyInBase64: string) {
-  // return Fr.fromBuffer(hashVKStr(verificationKeyInBase64));
+  // return Fr.fromBuffer(hashVK(Buffer.from(verificationKeyInBase64, 'hex')));
   return Fr.ZERO;
 }
diff --git a/yarn-project/circuits.js/src/contract/contract_tree/contract_tree.ts b/yarn-project/circuits.js/src/contract/contract_tree/contract_tree.ts
deleted file mode 100644
index b8139394216..00000000000
--- a/yarn-project/circuits.js/src/contract/contract_tree/contract_tree.ts
+++ /dev/null
@@ -1,109 +0,0 @@
-import { ContractFunctionDao, Fr, FunctionData, FunctionLeafPreimage } from '@aztec/circuits.js';
-import { FunctionSelector, FunctionType } from '@aztec/foundation/abi';
-
-import { hashVK } from '../../hash/hash.js';
-
-/**
- * Computes the hash of a hex-encoded string representation of a verification key (vk).
- * The input 'vk' should be a hexadecimal string, and the resulting hash is computed using 'hashVK' function.
- * Returns a Promise that resolves to a Buffer containing the hash of the verification key.
- *
- * @param vk - The hex-encoded string representing the verification key.
- * @returns A Promise resolving to a Buffer containing the hash of the verification key.
- */
-export function hashVKStr(vk: string) {
-  // TODO - check consistent encoding
-  return hashVK(Buffer.from(vk, 'hex'));
-}
-
-/**
- * Determine if the given function is a constructor.
- * This utility function checks if the 'name' property of the input object is "constructor".
- * Returns true if the function is a constructor, false otherwise.
- * TODO(palla/purge-old-contract-deploy): Remove me
- * @param Object - An object containing a 'name' property.
- * @returns Boolean indicating if the function is a constructor.
- */
-export function isConstructor({
-  name,
-}: {
-  /**
-   * Function name identifier.
-   */
-  name: string;
-}) {
-  return name === 'constructor';
-}
-
-/**
- * @param Object - An object containing function name and type.
- * @returns Boolean indicating if the function is constrained and therefore in the function tree.
- */
-export function isConstrained({
-  name,
-  functionType,
-}: {
-  /**
-   * The name of the contract function.
-   */
-  name: string;
-  /**
-   * The type of a contract function determining its constraints.
-   */
-  functionType: FunctionType;
-}) {
-  return functionType !== FunctionType.UNCONSTRAINED && !isConstructor({ name });
-}
-
-/**
- * Generate function leaves for the constrained functions in a contract.
- * Only computes leaves for functions that are either secret or open and not constructors.
- * Each function leaf is computed from its selector, privacy flag, hashed verification key, and hashed bytecode.
- *
- * @param functions - Array of ContractFunctionDao objects representing the functions in a contract.
- * @returns An array of Fr instances representing the generated function leaves.
- */
-export function generateFunctionLeaves(functions: ContractFunctionDao[]) {
-  const targetFunctions = functions.filter(isConstrained);
-  const result: Fr[] = [];
-  for (let i = 0; i < targetFunctions.length; i++) {
-    const f = targetFunctions[i];
-    const selector = FunctionSelector.fromNameAndParameters(f.name, f.parameters);
-    const isInternal = f.isInternal;
-    const isPrivate = f.functionType === FunctionType.SECRET;
-    // All non-unconstrained functions have vks
-    // TODO we'd need to have a defined length of the VK for this to be computed in noir
-    // const vkHash = hashVKStr(f.verificationKey!, wasm);
-    const vkHash = Buffer.alloc(32, 0);
-    // TODO
-    // FIXME: https://github.com/AztecProtocol/aztec3-packages/issues/262
-    // const acirHash = keccak(Buffer.from(f.bytecode, 'hex'));
-    const acirHash = Buffer.alloc(32, 0);
-
-    const fnLeafPreimage = new FunctionLeafPreimage(
-      selector,
-      isInternal,
-      isPrivate,
-      Fr.fromBuffer(vkHash),
-      Fr.fromBuffer(acirHash),
-    );
-    const fnLeaf = fnLeafPreimage.hash();
-    result.push(fnLeaf);
-  }
-  return result;
-}
-
-/**
- * Represents the constructor data for a new contract.
- * Contains the function data and verification key hash required for contract creation.
- */
-export interface NewContractConstructor {
-  /**
-   * Stores essential information about a contract function.
-   */
-  functionData: FunctionData;
-  /**
-   * The hashed verification key of a function.
-   */
-  vkHash: Buffer;
-}
diff --git a/yarn-project/circuits.js/src/contract/contract_tree/function_tree_data.test.ts b/yarn-project/circuits.js/src/contract/contract_tree/function_tree_data.test.ts
deleted file mode 100644
index aac4187726f..00000000000
--- a/yarn-project/circuits.js/src/contract/contract_tree/function_tree_data.test.ts
+++ /dev/null
@@ -1,50 +0,0 @@
-import { Fr } from '@aztec/foundation/fields';
-
-import { computeFunctionTreeData } from './function_tree_data.js';
-
-const getFr = (index: number) => Fr.fromBuffer(Buffer.alloc(32, index));
-const Tree = [
-  // leaves
-  getFr(8),
-  getFr(9),
-  getFr(10),
-  getFr(11),
-  getFr(12),
-  getFr(13),
-  getFr(14),
-  getFr(15),
-  // 1st hash level
-  getFr(4),
-  getFr(5),
-  getFr(6),
-  getFr(7),
-  // 2nd hash level
-  getFr(2),
-  getFr(3),
-  // root
-  getFr(1),
-];
-
-const tests = [
-  { index: 0, path: [getFr(9), getFr(5), getFr(3)] },
-  { index: 1, path: [getFr(8), getFr(5), getFr(3)] },
-  { index: 2, path: [getFr(11), getFr(4), getFr(3)] },
-  { index: 3, path: [getFr(10), getFr(4), getFr(3)] },
-  { index: 4, path: [getFr(13), getFr(7), getFr(2)] },
-  { index: 5, path: [getFr(12), getFr(7), getFr(2)] },
-  { index: 6, path: [getFr(15), getFr(6), getFr(2)] },
-  { index: 7, path: [getFr(14), getFr(6), getFr(2)] },
-];
-
-describe('Compute Function Tree Sibling Path', () => {
-  for (let i = 0; i < tests.length; i++) {
-    it('should generate the correct sibling path', () => {
-      const actual = computeFunctionTreeData(Tree, tests[i].index);
-      const expected = {
-        root: getFr(1),
-        siblingPath: tests[i].path,
-      };
-      expect(actual).toEqual(expected);
-    });
-  }
-});
diff --git a/yarn-project/circuits.js/src/contract/contract_tree/function_tree_data.ts b/yarn-project/circuits.js/src/contract/contract_tree/function_tree_data.ts
deleted file mode 100644
index c377adc95bd..00000000000
--- a/yarn-project/circuits.js/src/contract/contract_tree/function_tree_data.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-import { Fr } from '@aztec/foundation/fields';
-
-/**
- * Computes the root and sibling path of a given function tree and index.
- * The function takes in an array of Fr elements representing the function tree and an integer function index.
- * It returns an object containing the root element of the tree and an array of sibling path elements.
- *
- * @param functionTree - The array of Fr elements representing the function tree.
- * @param functionIndex - The integer index of the desired function in the tree.
- * @returns An object containing the root element (Fr) of the tree and an array of sibling path elements (Fr[]).
- */
-export function computeFunctionTreeData(functionTree: Fr[], functionIndex: number) {
-  let rowSize = Math.ceil(functionTree.length / 2);
-  let rowOffset = 0;
-  let index = functionIndex;
-  const siblingPath: Fr[] = [];
-  while (rowSize > 1) {
-    const isRight = index & 1;
-    siblingPath.push(functionTree[rowOffset + index + (isRight ? -1 : 1)]);
-    rowOffset += rowSize;
-    rowSize >>= 1;
-    index >>= 1;
-  }
-  return {
-    root: functionTree[functionTree.length - 1],
-    siblingPath,
-  };
-}
diff --git a/yarn-project/circuits.js/src/contract/contract_tree/index.ts b/yarn-project/circuits.js/src/contract/contract_tree/index.ts
deleted file mode 100644
index 33534f5568c..00000000000
--- a/yarn-project/circuits.js/src/contract/contract_tree/index.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-export * from './contract_tree.js';
-export * from './function_tree_data.js';
diff --git a/yarn-project/circuits.js/src/contract/index.ts b/yarn-project/circuits.js/src/contract/index.ts
index a72550dd8c9..2fddca8e767 100644
--- a/yarn-project/circuits.js/src/contract/index.ts
+++ b/yarn-project/circuits.js/src/contract/index.ts
@@ -5,6 +5,5 @@ export * from './contract_class_id.js';
 export * from './contract_class_registered_event.js';
 export * from './contract_instance.js';
 export * from './contract_instance_deployed_event.js';
-export * from './contract_tree/index.js';
 export * from './private_function.js';
 export * from './public_bytecode.js';