Switch EpochSlots to be frozen slots, not completed slots (#17168)

core/src/validator.rs

@@ -387,7 +387,7 @@ impl Validator {
             bank_forks,
             blockstore,
             ledger_signal_receiver,
-            completed_slots_receivers,
+            completed_slots_receiver,
             leader_schedule_cache,
             snapshot_hash,
             TransactionHistoryServices {
@@ -719,7 +719,7 @@ impl Validator {
             tower,
             &leader_schedule_cache,
             &exit,
-            completed_slots_receivers,
+            completed_slots_receiver,
             block_commitment_cache,
             config.enable_partition.clone(),
             transaction_status_sender.clone(),
@@ -1042,7 +1042,7 @@ fn new_banks_from_ledger(
     BankForks,
     Arc<Blockstore>,
     Receiver<bool>,
-    [CompletedSlotsReceiver; 2],
+    CompletedSlotsReceiver,
     LeaderScheduleCache,
     Option<(Slot, Hash)>,
     TransactionHistoryServices,
@@ -1073,7 +1073,7 @@ fn new_banks_from_ledger(
     let BlockstoreSignals {
         mut blockstore,
         ledger_signal_receiver,
-        completed_slots_receivers,
+        completed_slots_receiver,
         ..
     } = Blockstore::open_with_signal(
         ledger_path,
@@ -1225,7 +1225,7 @@ fn new_banks_from_ledger(
         bank_forks,
         blockstore,
         ledger_signal_receiver,
-        completed_slots_receivers,
+        completed_slots_receiver,
         leader_schedule_cache,
         snapshot_hash,
         transaction_history_services,