Improve parameters naming and remove unecessary returns (#2891)

contracts/token/ERC1155/ERC1155.sol

@@ -249,32 +249,32 @@ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
     }
 
     /**
-     * @dev Creates `amount` tokens of token type `id`, and assigns them to `account`.
+     * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`.
      *
      * Emits a {TransferSingle} event.
      *
      * Requirements:
      *
-     * - `account` cannot be the zero address.
-     * - If `account` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
+     * - `to` cannot be the zero address.
+     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
      * acceptance magic value.
      */
     function _mint(
-        address account,
+        address to,
         uint256 id,
         uint256 amount,
         bytes memory data
     ) internal virtual {
-        require(account != address(0), "ERC1155: mint to the zero address");
+        require(to != address(0), "ERC1155: mint to the zero address");
 
         address operator = _msgSender();
 
-        _beforeTokenTransfer(operator, address(0), account, _asSingletonArray(id), _asSingletonArray(amount), data);
+        _beforeTokenTransfer(operator, address(0), to, _asSingletonArray(id), _asSingletonArray(amount), data);
 
-        _balances[id][account] += amount;
-        emit TransferSingle(operator, address(0), account, id, amount);
+        _balances[id][to] += amount;
+        emit TransferSingle(operator, address(0), to, id, amount);
 
-        _doSafeTransferAcceptanceCheck(operator, address(0), account, id, amount, data);
+        _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data);
     }
 
     /**
@@ -309,31 +309,31 @@ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
     }
 
     /**
-     * @dev Destroys `amount` tokens of token type `id` from `account`
+     * @dev Destroys `amount` tokens of token type `id` from `from`
      *
      * Requirements:
      *
-     * - `account` cannot be the zero address.
-     * - `account` must have at least `amount` tokens of token type `id`.
+     * - `from` cannot be the zero address.
+     * - `from` must have at least `amount` tokens of token type `id`.
      */
     function _burn(
-        address account,
+        address from,
         uint256 id,
         uint256 amount
     ) internal virtual {
-        require(account != address(0), "ERC1155: burn from the zero address");
+        require(from != address(0), "ERC1155: burn from the zero address");
 
         address operator = _msgSender();
 
-        _beforeTokenTransfer(operator, account, address(0), _asSingletonArray(id), _asSingletonArray(amount), "");
+        _beforeTokenTransfer(operator, from, address(0), _asSingletonArray(id), _asSingletonArray(amount), "");
 
-        uint256 accountBalance = _balances[id][account];
-        require(accountBalance >= amount, "ERC1155: burn amount exceeds balance");
+        uint256 fromBalance = _balances[id][from];
+        require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
         unchecked {
-            _balances[id][account] = accountBalance - amount;
+            _balances[id][from] = fromBalance - amount;
         }
 
-        emit TransferSingle(operator, account, address(0), id, amount);
+        emit TransferSingle(operator, from, address(0), id, amount);
     }
 
     /**
@@ -344,29 +344,29 @@ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
      * - `ids` and `amounts` must have the same length.
      */
     function _burnBatch(
-        address account,
+        address from,
         uint256[] memory ids,
         uint256[] memory amounts
     ) internal virtual {
-        require(account != address(0), "ERC1155: burn from the zero address");
+        require(from != address(0), "ERC1155: burn from the zero address");
         require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
 
         address operator = _msgSender();
 
-        _beforeTokenTransfer(operator, account, address(0), ids, amounts, "");
+        _beforeTokenTransfer(operator, from, address(0), ids, amounts, "");
 
         for (uint256 i = 0; i < ids.length; i++) {
             uint256 id = ids[i];
             uint256 amount = amounts[i];
 
-            uint256 accountBalance = _balances[id][account];
-            require(accountBalance >= amount, "ERC1155: burn amount exceeds balance");
+            uint256 fromBalance = _balances[id][from];
+            require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
             unchecked {
-                _balances[id][account] = accountBalance - amount;
+                _balances[id][from] = fromBalance - amount;
             }
         }
 
-        emit TransferBatch(operator, account, address(0), ids, amounts);
+        emit TransferBatch(operator, from, address(0), ids, amounts);
     }
 
     /**

contracts/token/ERC20/extensions/ERC20Votes.sol

@@ -134,7 +134,7 @@ abstract contract ERC20Votes is ERC20Permit {
      * @dev Delegate votes from the sender to `delegatee`.
      */
     function delegate(address delegatee) public virtual {
-        return _delegate(_msgSender(), delegatee);
+        _delegate(_msgSender(), delegatee);
     }
 
     /**
@@ -156,7 +156,7 @@ abstract contract ERC20Votes is ERC20Permit {
             s
         );
         require(nonce == _useNonce(signer), "ERC20Votes: invalid nonce");
-        return _delegate(signer, delegatee);
+        _delegate(signer, delegatee);
     }
 
     /**