Remove redundant overrides in Governor (#522)

Co-authored-by: Eric Lau <[email protected]>

Author: HananeBendisari

packages/core/solidity/CHANGELOG.md

@@ -3,6 +3,7 @@
 ## Unreleased
 
 - Add `account` contract types for ERC-4337. ([#486](https://github.com/OpenZeppelin/contracts-wizard/pull/486))
+- Remove redundant overrides in Governor. ([#522](https://github.com/OpenZeppelin/contracts-wizard/pull/522))
 
 - **Potentially breaking changes**:
   - Update pragma versions to 0.8.27. ([#486](https://github.com/OpenZeppelin/contracts-wizard/pull/486))