revert programify feature gate (#33897)

(cherry picked from commit ecd674b)

runtime/src/bank.rs

@@ -43,7 +43,6 @@ use {
         builtins::{BuiltinPrototype, BUILTINS},
         epoch_rewards_hasher::hash_rewards_into_partitions,
         epoch_stakes::{EpochStakes, NodeVoteAccounts},
-        inline_feature_gate_program,
         runtime_config::RuntimeConfig,
         serde_snapshot::BankIncrementalSnapshotPersistence,
         snapshot_hash::SnapshotHash,
@@ -218,7 +217,6 @@ pub mod bank_hash_details;
 mod builtin_programs;
 pub mod epoch_accounts_hash_utils;
 mod metrics;
-mod replace_account;
 mod serde_snapshot;
 mod sysvar_cache;
 #[cfg(test)]
@@ -8084,24 +8082,6 @@ impl Bank {
         if new_feature_activations.contains(&feature_set::update_hashes_per_tick6::id()) {
             self.apply_updated_hashes_per_tick(UPDATED_HASHES_PER_TICK6);
         }
-
-        if new_feature_activations.contains(&feature_set::programify_feature_gate_program::id()) {
-            let datapoint_name = "bank-progamify_feature_gate_program";
-            if let Err(e) = replace_account::replace_empty_account_with_upgradeable_program(
-                self,
-                &feature::id(),
-                &inline_feature_gate_program::noop_program::id(),
-                datapoint_name,
-            ) {
-                warn!(
-                    "{}: Failed to replace empty account {} with upgradeable program: {}",
-                    datapoint_name,
-                    feature::id(),
-                    e
-                );
-                datapoint_warn!(datapoint_name, ("slot", self.slot(), i64),);
-            }
-        }
     }
 
     fn apply_updated_hashes_per_tick(&mut self, hashes_per_tick: u64) {
@@ -8243,6 +8223,42 @@ impl Bank {
         }
     }
 
+    /// Use to replace programs by feature activation
+    #[allow(dead_code)]
+    fn replace_program_account(
+        &mut self,
+        old_address: &Pubkey,
+        new_address: &Pubkey,
+        datapoint_name: &'static str,
+    ) {
+        if let Some(old_account) = self.get_account_with_fixed_root(old_address) {
+            if let Some(new_account) = self.get_account_with_fixed_root(new_address) {
+                datapoint_info!(datapoint_name, ("slot", self.slot, i64));
+
+                // Burn lamports in the old account
+                self.capitalization
+                    .fetch_sub(old_account.lamports(), Relaxed);
+
+                // Transfer new account to old account
+                self.store_account(old_address, &new_account);
+
+                // Clear new account
+                self.store_account(new_address, &AccountSharedData::default());
+
+                // Unload a program from the bank's cache
+                self.loaded_programs_cache
+                    .write()
+                    .unwrap()
+                    .remove_programs([*old_address].into_iter());
+
+                self.calculate_and_update_accounts_data_size_delta_off_chain(
+                    old_account.data().len(),
+                    new_account.data().len(),
+                );
+            }
+        }
+    }
+
     /// Get all the accounts for this bank and calculate stats
     pub fn get_total_accounts_stats(&self) -> ScanResult<TotalAccountsStats> {
         let accounts = self.get_all_accounts()?;