internal/ethapi: remove error return on RPCMarshalBlock (#27449)

rm error when marshal block to rpc type allen

internal/ethapi/api.go

@@ -1281,7 +1281,7 @@ func RPCMarshalHeader(head *types.Header) map[string]interface{} {
 // RPCMarshalBlock converts the given block to the RPC output which depends on fullTx. If inclTx is true transactions are
 // returned. When fullTx is true the returned block contains full transaction details, otherwise it will only contain
 // transaction hashes.
-func RPCMarshalBlock(block *types.Block, inclTx bool, fullTx bool, config *params.ChainConfig) (map[string]interface{}, error) {
+func RPCMarshalBlock(block *types.Block, inclTx bool, fullTx bool, config *params.ChainConfig) map[string]interface{} {
 	fields := RPCMarshalHeader(block.Header())
 	fields["size"] = hexutil.Uint64(block.Size())
 
@@ -1310,7 +1310,7 @@ func RPCMarshalBlock(block *types.Block, inclTx bool, fullTx bool, config *param
 	if block.Header().WithdrawalsHash != nil {
 		fields["withdrawals"] = block.Withdrawals()
 	}
-	return fields, nil
+	return fields
 }
 
 // rpcMarshalHeader uses the generalized output filler, then adds the total difficulty field, which requires
@@ -1324,14 +1324,11 @@ func (s *BlockChainAPI) rpcMarshalHeader(ctx context.Context, header *types.Head
 // rpcMarshalBlock uses the generalized output filler, then adds the total difficulty field, which requires
 // a `BlockchainAPI`.
 func (s *BlockChainAPI) rpcMarshalBlock(ctx context.Context, b *types.Block, inclTx bool, fullTx bool) (map[string]interface{}, error) {
-	fields, err := RPCMarshalBlock(b, inclTx, fullTx, s.b.ChainConfig())
-	if err != nil {
-		return nil, err
-	}
+	fields := RPCMarshalBlock(b, inclTx, fullTx, s.b.ChainConfig())
 	if inclTx {
 		fields["totalDifficulty"] = (*hexutil.Big)(s.b.GetTd(ctx, b.Hash()))
 	}
-	return fields, err
+	return fields, nil
 }
 
 // RPCTransaction represents a transaction that will serialize to the RPC representation of a transaction