Remove duplicated log (#9653)

remove duplicated log

Author: marcindsobczak

src/Nethermind/Nethermind.Synchronization/ParallelSync/MultiSyncModeSelector.cs

@@ -284,7 +284,7 @@ private void UpdateSyncModes(SyncMode newModes, string? reason = null)
         /// <param name="best">Snapshot of the best known states</param>
         /// <returns>A string describing the state of sync</returns>
         private static string BuildStateString(Snapshot best) =>
-            $"pivot: {best.PivotNumber} | header: {best.Header} | header: {best.Header} | target: {best.TargetBlock} | peer: {best.Peer.Block} | state: {best.State}";
+            $"pivot: {best.PivotNumber} | header: {best.Header} | target: {best.TargetBlock} | peer: {best.Peer.Block} | state: {best.State}";
 
         private static string BuildStateStringDebug(Snapshot best) =>
             $"processed: {best.Processed} | state: {best.State} | block: {best.Block} | header: {best.Header} | chain difficulty: {best.ChainDifficulty} | target block: {best.TargetBlock} | peer block: {best.Peer.Block} | peer total difficulty: {best.Peer.TotalDifficulty}";