feat(account-tree-controller): use multichain-account-service to build multichain account wallet/group nodes

packages/account-tree-controller/CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- **BREAKING:** Use `MultichainAccountService` to build multichain account (BIP-44) nodes ([#6646](https://github.com/MetaMask/core/pull/6646))
+  - Previously, the controller was using a similar matching logic for BIP-44 accounts, which was redundant with the logic from this service.
+  - Wallets and groups are now directly consumed from the service, making the service be the source of truth for accounts related to BIP-44.
+
 ## [2.0.0]
 
 ### Changed