turbo/execution: drop td lookup in getters (#12832)

Since we started prunning TD (roughly after 100,000 blocks) there is no
longer any point in keeping the TD lookups in some of the
ExecutionModule read APIs such as `GetHeader`, `GetBody`, etc.

Those lookups actually also break the APIs for use cases in which some
components need to read block data older than the prune point of the TD.
In those cases Ive observed we return errors when in reality the data is
there (in snapshots) and is accessible otherwise.

turbo/execution/eth1/ethereum_execution.go

@@ -121,14 +121,6 @@ func NewEthereumExecutionModule(blockReader services.FullBlockReader, db kv.RwDB
 }
 
 func (e *EthereumExecutionModule) getHeader(ctx context.Context, tx kv.Tx, blockHash libcommon.Hash, blockNumber uint64) (*types.Header, error) {
-	td, err := rawdb.ReadTd(tx, blockHash, blockNumber)
-	if err != nil {
-		return nil, err
-	}
-	if td == nil {
-		return nil, nil
-	}
-
 	if e.blockReader == nil {
 		return rawdb.ReadHeader(tx, blockHash, blockNumber), nil
 	}
@@ -142,13 +134,6 @@ func (e *EthereumExecutionModule) getTD(_ context.Context, tx kv.Tx, blockHash l
 }
 
 func (e *EthereumExecutionModule) getBody(ctx context.Context, tx kv.Tx, blockHash libcommon.Hash, blockNumber uint64) (*types.Body, error) {
-	td, err := rawdb.ReadTd(tx, blockHash, blockNumber)
-	if err != nil {
-		return nil, err
-	}
-	if td == nil {
-		return nil, nil
-	}
 	if e.blockReader == nil {
 		body, _, _ := rawdb.ReadBody(tx, blockHash, blockNumber)
 		return body, nil
@@ -175,13 +160,6 @@ func (e *EthereumExecutionModule) canonicalHash(ctx context.Context, tx kv.Tx, b
 		}
 	}
 
-	td, err := rawdb.ReadTd(tx, canonical, blockNumber)
-	if err != nil {
-		return libcommon.Hash{}, err
-	}
-	if td == nil {
-		return libcommon.Hash{}, nil
-	}
 	return canonical, nil
 }
 

turbo/execution/eth1/getters.go

@@ -84,13 +84,6 @@ func (e *EthereumExecutionModule) GetBody(ctx context.Context, req *execution.Ge
 	if err != nil {
 		return nil, fmt.Errorf("ethereumExecutionModule.GetBody: parseSegmentRequest error %w", err)
 	}
-	td, err := rawdb.ReadTd(tx, blockHash, blockNumber)
-	if err != nil {
-		return nil, fmt.Errorf("ethereumExecutionModule.GetBody: ReadTd error %w", err)
-	}
-	if td == nil {
-		return &execution.GetBodyResponse{Body: nil}, nil
-	}
 	body, err := e.getBody(ctx, tx, blockHash, blockNumber)
 	if err != nil {
 		return nil, fmt.Errorf("ethereumExecutionModule.GetBody: getBody error %w", err)