Refactor TxValidator

src/Nethermind/Nethermind.Api/IApiWithBlockchain.cs

@@ -74,7 +74,7 @@ public interface IApiWithBlockchain : IApiWithStores, IBlockchainBridgeFactory
         IHealthHintService? HealthHintService { get; set; }
         IRpcCapabilitiesProvider? RpcCapabilitiesProvider { get; set; }
         ITransactionComparerProvider? TransactionComparerProvider { get; set; }
-        ITxValidator? TxValidator { get; set; }
+        TxValidator? TxValidator { get; set; }
 
         /// <summary>
         /// Manager of block finalization

src/Nethermind/Nethermind.Api/NethermindApi.cs

@@ -208,7 +208,7 @@ public ISealEngine SealEngine
         public ITxPoolInfoProvider? TxPoolInfoProvider { get; set; }
         public IHealthHintService? HealthHintService { get; set; }
         public IRpcCapabilitiesProvider? RpcCapabilitiesProvider { get; set; }
-        public ITxValidator? TxValidator { get; set; }
+        public TxValidator? TxValidator { get; set; }
         public IBlockFinalizationManager? FinalizationManager { get; set; }
         public IGasLimitCalculator? GasLimitCalculator { get; set; }