remove octree tilehashes

Author: bertt

src/b3dm.tileset/OctreeTiler.cs

@@ -98,7 +98,6 @@ private HashSet<string> CreateTileForLargestGeometries3D(BoundingBox3D bbox, int
     {
         // clone processedGeometries to avoid modifying the original set in recursive calls
         var localProcessedGeometries = new HashSet<string>(processedGeometries);
-        var tileHashes = new HashSet<string>();
 
         // Get the largest geometries (up to MaxFeaturesPerTile) for this tile at this level
         int target_srs = tilingSettings.KeepProjection ? inputTable.EPSGCode : 4978;
@@ -109,7 +108,6 @@ private HashSet<string> CreateTileForLargestGeometries3D(BoundingBox3D bbox, int
         if (geometriesToProcess.Count > 0) {
             foreach (var geom in geometriesToProcess.Where(geom => !string.IsNullOrEmpty(geom.Hash))) {
                 localProcessedGeometries.Add(geom.Hash);
-                tileHashes.Add(geom.Hash);
             }
 
             var file = $"{tilesetSettings.OutputSettings.ContentFolder}{Path.AltDirectorySeparatorChar}{tile.Level}_{tile.Z}_{tile.X}_{tile.Y}.glb";