Remove Snapshot stats fields (#3886)

Relates: elastic/elasticsearch#30890

Author: russcam

src/Nest/Modules/SnapshotAndRestore/Snapshot/SnapshotStatus/SnapshotStatusResponse.cs

@@ -85,22 +85,10 @@ public class SnapshotShardsStats
 
 	public class SnapshotStats
 	{
-		[DataMember(Name ="number_of_files")]
-		public long NumberOfFiles { get; internal set; }
-
-		[DataMember(Name ="processed_files")]
-		public long ProcessedFiles { get; internal set; }
-
-		[DataMember(Name ="processed_size_in_bytes")]
-		public long ProcessedSizeInBytes { get; internal set; }
-
 		[DataMember(Name ="start_time_in_millis")]
 		public long StartTimeInMilliseconds { get; internal set; }
 
 		[DataMember(Name ="time_in_millis")]
 		public long TimeInMilliseconds { get; internal set; }
-
-		[DataMember(Name ="total_size_in_bytes")]
-		public long TotalSizeInBytes { get; internal set; }
 	}
 }