Remove deprecated slow epoch boundary methods (backport #21568) (#21595)

* Remove deprecated slow epoch boundary methods (#21568)

(cherry picked from commit 1430b58a6d)

# Conflicts:
#	core/src/replay_stage.rs
#	core/src/tvu.rs
#	core/src/validator.rs
#	local-cluster/src/validator_configs.rs
#	runtime/src/bank.rs
#	runtime/src/stakes.rs

* resolve conflicts

Co-authored-by: Justin Starry <justin@solana.com>

core/src/replay_stage.rs

@@ -132,7 +132,6 @@ pub struct ReplayStageConfig {
     pub cache_block_meta_sender: Option<CacheBlockMetaSender>,
     pub bank_notification_sender: Option<BankNotificationSender>,
     pub wait_for_vote_to_start_leader: bool,
-    pub disable_epoch_boundary_optimization: bool,
 }
 
 #[derive(Default)]
@@ -334,7 +333,6 @@ impl ReplayStage {
             cache_block_meta_sender,
             bank_notification_sender,
             wait_for_vote_to_start_leader,
-            disable_epoch_boundary_optimization,
         } = config;
 
         trace!("replay stage");
@@ -699,7 +697,6 @@ impl ReplayStage {
                             &retransmit_slots_sender,
                             &mut skipped_slots_info,
                             has_new_vote_been_rooted,
-                            disable_epoch_boundary_optimization,
                         );
 
                         let poh_bank = poh_recorder.lock().unwrap().bank();
@@ -1090,7 +1087,6 @@ impl ReplayStage {
         retransmit_slots_sender: &RetransmitSlotsSender,
         skipped_slots_info: &mut SkippedSlotsInfo,
         has_new_vote_been_rooted: bool,
-        disable_epoch_boundary_optimization: bool,
     ) {
         // all the individual calls to poh_recorder.lock() are designed to
         // increase granularity, decrease contention
@@ -1208,10 +1204,7 @@ impl ReplayStage {
                 root_slot,
                 my_pubkey,
                 rpc_subscriptions,
-                NewBankOptions {
-                    vote_only_bank,
-                    disable_epoch_boundary_optimization,
-                },
+                NewBankOptions { vote_only_bank },
             );
 
             let tpu_bank = bank_forks.write().unwrap().insert(tpu_bank);

core/src/tvu.rs

@@ -98,7 +98,6 @@ pub struct TvuConfig {
     pub rocksdb_max_compaction_jitter: Option<u64>,
     pub wait_for_vote_to_start_leader: bool,
     pub accounts_shrink_ratio: AccountShrinkThreshold,
-    pub disable_epoch_boundary_optimization: bool,
 }
 
 impl Tvu {
@@ -282,7 +281,6 @@ impl Tvu {
             cache_block_meta_sender,
             bank_notification_sender,
             wait_for_vote_to_start_leader: tvu_config.wait_for_vote_to_start_leader,
-            disable_epoch_boundary_optimization: tvu_config.disable_epoch_boundary_optimization,
         };
 
         let (voting_sender, voting_receiver) = channel();

core/src/validator.rs

@@ -154,7 +154,6 @@ pub struct ValidatorConfig {
     pub validator_exit: Arc<RwLock<Exit>>,
     pub no_wait_for_vote_to_start_leader: bool,
     pub accounts_shrink_ratio: AccountShrinkThreshold,
-    pub disable_epoch_boundary_optimization: bool,
 }
 
 impl Default for ValidatorConfig {
@@ -213,7 +212,6 @@ impl Default for ValidatorConfig {
             validator_exit: Arc::new(RwLock::new(Exit::default())),
             no_wait_for_vote_to_start_leader: true,
             accounts_shrink_ratio: AccountShrinkThreshold::default(),
-            disable_epoch_boundary_optimization: false,
         }
     }
 }
@@ -810,7 +808,6 @@ impl Validator {
                 rocksdb_max_compaction_jitter: config.rocksdb_compaction_interval,
                 wait_for_vote_to_start_leader,
                 accounts_shrink_ratio: config.accounts_shrink_ratio,
-                disable_epoch_boundary_optimization: config.disable_epoch_boundary_optimization,
             },
             &max_slots,
             &cost_model,