Revert "Reformat imports to a consistent style for imports"

This reverts commit 139d15cd84.

core/src/ledger_cleanup_service.rs

@@ -1,24 +1,17 @@
 //! The `ledger_cleanup_service` drops older ledger data to limit disk space usage
 
-use {
-    rand::{thread_rng, Rng},
-    solana_ledger::{
-        blockstore::{Blockstore, PurgeType},
-        blockstore_db::Result as BlockstoreResult,
-    },
-    solana_measure::measure::Measure,
-    solana_sdk::clock::{Slot, DEFAULT_TICKS_PER_SLOT, TICKS_PER_DAY},
-    std::{
-        string::ToString,
-        sync::{
-            atomic::{AtomicBool, AtomicU64, Ordering},
-            mpsc::{Receiver, RecvTimeoutError},
-            Arc,
-        },
-        thread::{self, sleep, Builder, JoinHandle},
-        time::Duration,
-    },
-};
+use rand::{thread_rng, Rng};
+use solana_ledger::blockstore::{Blockstore, PurgeType};
+use solana_ledger::blockstore_db::Result as BlockstoreResult;
+use solana_measure::measure::Measure;
+use solana_sdk::clock::{Slot, DEFAULT_TICKS_PER_SLOT, TICKS_PER_DAY};
+use std::string::ToString;
+use std::sync::atomic::{AtomicBool, AtomicU64, Ordering};
+use std::sync::mpsc::{Receiver, RecvTimeoutError};
+use std::sync::Arc;
+use std::thread;
+use std::thread::{sleep, Builder, JoinHandle};
+use std::time::Duration;
 
 // - To try and keep the RocksDB size under 400GB:
 //   Seeing about 1600b/shred, using 2000b/shred for margin, so 200m shreds can be stored in 400gb.
@@ -313,11 +306,10 @@ impl LedgerCleanupService {
 }
 #[cfg(test)]
 mod tests {
-    use {
-        super::*,
-        solana_ledger::{blockstore::make_many_slot_entries, get_tmp_ledger_path},
-        std::sync::mpsc::channel,
-    };
+    use super::*;
+    use solana_ledger::blockstore::make_many_slot_entries;
+    use solana_ledger::get_tmp_ledger_path;
+    use std::sync::mpsc::channel;
 
     #[test]
     fn test_cleanup1() {