diff --git a/runtime/src/snapshot_utils.rs b/runtime/src/snapshot_utils.rs
index 4a33544f8129c5..9639b21470dd3e 100644
--- a/runtime/src/snapshot_utils.rs
+++ b/runtime/src/snapshot_utils.rs
@@ -685,16 +685,12 @@ fn deserialize_snapshot_data_files_capped<F, T>(
 where
     F: FnOnce(&mut SnapshotStreams<File>) -> Result<T>,
 {
-    /////////////////////// full snapshot
-
     let (full_snapshot_file_size, mut full_snapshot_data_file_stream) =
         prepare_deserialize_snapshot_data_file(
             &snapshot_root_paths.full_snapshot_root_file_path,
             maximum_file_size,
         )?;
 
-    ////////////////////// incremental snapshot
-
     let (incremental_snapshot_file_size, mut incremental_snapshot_data_file_stream) =
         if let Some(ref incremental_snapshot_root_file_path) =
             snapshot_root_paths.incremental_snapshot_root_file_path
@@ -712,25 +708,18 @@ where
             (None, None)
         };
 
-    ///////////////////// deserialize
-
     let mut snapshot_streams = SnapshotStreams {
         full_snapshot_stream: &mut full_snapshot_data_file_stream,
         incremental_snapshot_stream: incremental_snapshot_data_file_stream.as_mut(),
     };
-
     let ret = deserializer(&mut snapshot_streams)?;
 
-    //////////////////// check full snapshot
-
     check_deserialize_snapshot_data_file(
         full_snapshot_file_size,
         &snapshot_root_paths.full_snapshot_root_file_path,
         &mut full_snapshot_data_file_stream,
     )?;
 
-    ////////////////////// check incremental snapshot
-
     if let Some(ref incremental_snapshot_root_file_path) =
         snapshot_root_paths.incremental_snapshot_root_file_path
     {
@@ -994,8 +983,6 @@ where
         std::cmp::max(1, num_cpus::get() / 4),
     );
 
-    ////////// Full Snapshot
-
     let (
         _full_snapshot_unpack_dir,
         full_snapshot_unpacked_snapshots_dir,
@@ -1012,8 +999,6 @@ where
         parallel_divisions,
     )?;
 
-    ////////// Incremental Snapshot
-
     let (
         _incremental_snapshot_unpack_dir,
         incremental_snapshot_unpacked_snapshots_dir,
@@ -1052,8 +1037,6 @@ where
         (None, None, None, None, None)
     };
 
-    ///////// do rebuild
-
     let mut unpacked_append_vec_map = full_snapshot_unpacked_append_vec_map;
     unpacked_append_vec_map.extend(
         incremental_snapshot_unpacked_append_vec_map