Remove some dead code (#6861)

Signed-off-by: Fabio Di Fabio <fabio.difabio@consensys.net>

ethereum/core/src/main/java/org/hyperledger/besu/ethereum/core/feemarket/BaseFee.java

@@ -1,48 +0,0 @@
-/*
- * Copyright ConsenSys AG.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
- * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations under the License.
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-package org.hyperledger.besu.ethereum.core.feemarket;
-
-import org.hyperledger.besu.datatypes.Wei;
-import org.hyperledger.besu.ethereum.mainnet.feemarket.BaseFeeMarket;
-
-public class BaseFee {
-  private final Wei value;
-  private final Wei delta;
-  private final Wei minNextValue;
-  private final Wei maxNextValue;
-
-  public BaseFee(final BaseFeeMarket feeMarket, final Wei value) {
-    this.value = value;
-    this.delta = value.divide(feeMarket.getBasefeeMaxChangeDenominator());
-    this.minNextValue = value.subtract(delta);
-    this.maxNextValue = value.add(delta);
-  }
-
-  public Wei getValue() {
-    return value;
-  }
-
-  public Wei getDelta() {
-    return delta;
-  }
-
-  public Wei getMinNextValue() {
-    return minNextValue;
-  }
-
-  public Wei getMaxNextValue() {
-    return maxNextValue;
-  }
-}

ethereum/core/src/main/java/org/hyperledger/besu/ethereum/core/feemarket/TransactionPriceCalculator.java

@@ -14,11 +14,9 @@
  */
 package org.hyperledger.besu.ethereum.core.feemarket;
 
-import org.hyperledger.besu.datatypes.BlobGas;
 import org.hyperledger.besu.datatypes.Wei;
 import org.hyperledger.besu.ethereum.core.Transaction;
 
-import java.math.BigInteger;
 import java.util.Optional;
 
 @FunctionalInterface
@@ -44,36 +42,4 @@ public interface TransactionPriceCalculator {
       return price;
     };
   }
-
-  // curiously named as in the spec
-  // https://eips.ethereum.org/EIPS/eip-4844#cryptographic-helpers
-  private static BigInteger fakeExponential(
-      final BigInteger factor, final BigInteger numerator, final BigInteger denominator) {
-    int i = 1;
-    BigInteger output = BigInteger.ZERO;
-    BigInteger numeratorAccumulator = factor.multiply(denominator);
-    while (numeratorAccumulator.signum() > 0) {
-      output = output.add(numeratorAccumulator);
-      numeratorAccumulator =
-          (numeratorAccumulator.multiply(numerator))
-              .divide(denominator.multiply(BigInteger.valueOf(i)));
-      ++i;
-    }
-    return output.divide(denominator);
-  }
-
-  static TransactionPriceCalculator blobGas(
-      final int minBlobGasPrice,
-      final int blobGasPriceUpdateFraction,
-      final BlobGas excessBlobGas) {
-    return ((transaction, baseFee) -> {
-      final var blobGasPrice =
-          Wei.of(
-              fakeExponential(
-                  BigInteger.valueOf(minBlobGasPrice),
-                  excessBlobGas.toBigInteger(),
-                  BigInteger.valueOf(blobGasPriceUpdateFraction)));
-      return blobGasPrice;
-    });
-  }
 }