all: replace data gas to blob gas in comments (#27825)

* eth: excessDataGas -> excessBlobGas

* consensus: data gas -> blob gas

* core: data gas -> blob gas

* params: data gas -> blob gas

core/txpool/blobpool/blobpool.go

@@ -184,7 +184,7 @@ func newBlobTxMeta(id uint64, size uint32, tx *types.Transaction) *blobTxMeta {
 //   - Local txs are meaningless. Mining pools historically used local transactions
 //     for payouts or for backdoor deals. With 1559 in place, the basefee usually
 //     dominates the final price, so 0 or non-0 tip doesn't change much. Blob txs
-//     retain the 1559 2D gas pricing (and introduce on top a dynamic data gas fee),
+//     retain the 1559 2D gas pricing (and introduce on top a dynamic blob gas fee),
 //     so locality is moot. With a disk backed blob pool avoiding the resend issue,
 //     there's also no need to save own transactions for later.
 //

core/txpool/blobpool/blobpool_test.go

@@ -122,7 +122,7 @@ func (bc *testBlockChain) CurrentBlock() *types.Header {
 	}
 	baseFee := lo
 
-	// The excess data gas at 2^27 translates into a blob fee higher than mainnet
+	// The excess blob gas at 2^27 translates into a blob fee higher than mainnet
 	// ether existence, use that as a cap for the tests.
 	lo = new(big.Int)
 	hi = new(big.Int).Exp(big.NewInt(2), big.NewInt(27), nil)