chore: Remove unused code across multiple modules

src/Nethermind/Nethermind.Consensus.Clique/BlockHeaderExtensions.cs

@@ -1,8 +1,6 @@
 // SPDX-FileCopyrightText: 2022 Demerzel Solutions Limited
 // SPDX-License-Identifier: LGPL-3.0-only
 
-using System;
-using Nethermind.Blockchain;
 using Nethermind.Core;
 
 namespace Nethermind.Consensus.Clique
@@ -13,23 +11,6 @@ public static bool IsInTurn(this BlockHeader header)
         {
             return header.Difficulty == Clique.DifficultyInTurn;
         }
-
-        internal static Address[] ExtractSigners(BlockHeader blockHeader)
-        {
-            if (blockHeader.ExtraData is null)
-            {
-                throw new BlockchainException("Block header ExtraData cannot be null when extracting signers");
-            }
-
-            Span<byte> signersData = blockHeader.ExtraData.AsSpan(Clique.ExtraVanityLength, (blockHeader.ExtraData.Length - Clique.ExtraSealLength));
-            Address[] signers = new Address[signersData.Length / Address.Size];
-            for (int i = 0; i < signers.Length; i++)
-            {
-                signers[i] = new Address(signersData.Slice(i * 20, 20).ToArray());
-            }
-
-            return signers;
-        }
     }
 
     internal static class BlockExtensions

src/Nethermind/Nethermind.Init/Steps/InitializeBlockchain.cs

@@ -32,7 +32,6 @@ namespace Nethermind.Init.Steps
     public class InitializeBlockchain(INethermindApi api, IChainHeadInfoProvider chainHeadInfoProvider) : IStep
     {
         private readonly INethermindApi _api = api;
-        private ILogManager _logManager = api.LogManager;
 
         public async Task Execute(CancellationToken _)
         {

src/Nethermind/Nethermind.Optimism/CL/L1Bridge/EthereumL1Bridge.cs

@@ -224,11 +224,6 @@ private DaDataSource ProcessCalldataBatcherTransaction(L1Transaction transaction
         return _unfinalizedL1BlocksQueue.Count == 0 ? null : _unfinalizedL1BlocksQueue.Dequeue();
     }
 
-    private void LogReorg()
-    {
-        if (_logger.IsInfo) _logger.Info("L1 reorg detected. Resetting pipeline");
-    }
-
     public async Task<L1Block> GetBlock(ulong blockNumber, CancellationToken token) =>
         await RetryGetBlock(async () => await _ethL1Api.GetBlockByNumber(blockNumber, true), token);
 

src/Nethermind/Nethermind.Runner/Ethereum/EthereumRunner.cs

@@ -1,7 +1,6 @@
 // SPDX-FileCopyrightText: 2022 Demerzel Solutions Limited
 // SPDX-License-Identifier: LGPL-3.0-only
 
-using System;
 using System.Threading;
 using System.Threading.Tasks;
 using Autofac;
@@ -41,18 +40,4 @@ public async Task StopAsync()
             _logger.Info("Ethereum runner stopped");
         }
     }
-
-    private Task Stop(Func<Task?> stopAction, string description)
-    {
-        try
-        {
-            if (_logger.IsInfo) _logger.Info(description);
-            return stopAction() ?? Task.CompletedTask;
-        }
-        catch (Exception e)
-        {
-            if (_logger.IsError) _logger.Error($"{description} shutdown error.", e);
-            return Task.CompletedTask;
-        }
-    }
 }

src/Nethermind/Nethermind.Serialization.Ssz/Ssz.BasicTypes.cs

@@ -15,6 +15,8 @@ namespace Nethermind.Serialization.Ssz;
 /// </summary>
 public static partial class Ssz
 {
+    private const int VarOffsetSize = sizeof(uint);
+
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static void Encode(Span<byte> span, byte[] value, ref int offset)
     {

src/Nethermind/Nethermind.State/PersistentStorageProvider.cs

@@ -452,7 +452,6 @@ public void UnmarkClear()
 
     private sealed class PerContractState : IReturnable
     {
-        private static readonly Func<StorageCell, PerContractState, byte[]> _loadFromTreeStorageFunc = LoadFromTreeStorage;
         private IWorldStateScopeProvider.IStorageTree? _backend;
 
         private readonly DefaultableDictionary BlockChange = new();

src/Nethermind/Nethermind.Trie/PatriciaTree.cs

@@ -6,7 +6,6 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
-using System.IO;
 using System.Runtime.CompilerServices;
 using System.Threading;
 using System.Threading.Tasks;
@@ -25,7 +24,6 @@ namespace Nethermind.Trie
     public partial class PatriciaTree
     {
         private const int MaxKeyStackAlloc = 64;
-        private readonly static byte[][] _singleByteKeys = [[0], [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15]];
 
         private readonly ILogger _logger;
 
@@ -1003,25 +1001,5 @@ bool TryGetRootRef(out TrieNode? rootRef)
 
         [DoesNotReturn, StackTraceHidden]
         static void ThrowReadOnlyTrieException() => throw new TrieException("Commits are not allowed on this trie.");
-
-        [DoesNotReturn, StackTraceHidden]
-        private static void ThrowInvalidDataException(TrieNode originalNode)
-        {
-            throw new InvalidDataException(
-                $"Extension {originalNode.Keccak} has no child.");
-        }
-
-        [DoesNotReturn, StackTraceHidden]
-        private static void ThrowMissingChildException(TrieNode node)
-        {
-            throw new TrieException(
-                $"Found an {nameof(NodeType.Extension)} {node.Keccak} that is missing a child.");
-        }
-
-        [DoesNotReturn, StackTraceHidden]
-        private static void ThrowMissingPrefixException()
-        {
-            throw new InvalidDataException("An attempt to visit a node without a prefix path.");
-        }
     }
 }

src/Nethermind/Nethermind.Trie/Pruning/TrieStore.cs

@@ -1228,11 +1228,6 @@ public bool IsNoLongerNeeded(long lastCommit)
                && lastCommit < LatestCommittedBlockNumber - _maxDepth;
     }
 
-    private bool IsStillNeeded(long lastCommit)
-    {
-        return !IsNoLongerNeeded(lastCommit);
-    }
-
     private void AnnounceReorgBoundaries()
     {
         if (LatestCommittedBlockNumber < 1)

src/Nethermind/Nethermind.Trie/TrieNode.cs

@@ -32,7 +32,6 @@ public sealed partial class TrieNode
 #endif
 
         private static readonly object _nullNode = new();
-        private static readonly TrieNodeDecoder _nodeDecoder = new();
         private static readonly AccountDecoder _accountDecoder = new();
 
         private const byte _dirtyMask = 0b001;