Delete unused type (#7653)

programs/stake/src/stake_state.rs

@@ -843,7 +843,12 @@ pub fn create_lockup_stake_account(
     let mut stake_account = Account::new(lamports, std::mem::size_of::<StakeState>(), &id());
 
     let rent_exempt_reserve = rent.minimum_balance(stake_account.data.len());
-    assert!(lamports >= rent_exempt_reserve);
+    assert!(
+        lamports >= rent_exempt_reserve,
+        "lamports: {} is less than rent_exempt_reserve {}",
+        lamports,
+        rent_exempt_reserve
+    );
 
     stake_account
         .set_state(&StakeState::Initialized(Meta {

runtime/src/bank.rs

@@ -4470,13 +4470,13 @@ mod tests {
                         &Authorized::auto(&pubkey),
                         &Lockup::default(),
                         &Rent::default(),
-                        42,
+                        50_000_000,
                     ),
                 );
             });
         }
         solana_logger::setup();
-        let (mut genesis_config, _) = create_genesis_config(100_000_000);
+        let (mut genesis_config, _) = create_genesis_config(100_000_000_000_000);
         add_lotsa_stake_accounts(&mut genesis_config);
         let mut bank = std::sync::Arc::new(Bank::new(&genesis_config));
         let mut num_banks = 0;

runtime/src/stakes.rs

@@ -8,18 +8,6 @@ use solana_stake_program::stake_state::{new_stake_history_entry, Delegation, Sta
 use solana_vote_program::vote_state::VoteState;
 use std::collections::HashMap;
 
-#[derive(Default, Clone, PartialEq, Debug, Deserialize, Serialize)]
-pub struct StakeDelegation {
-    /// to whom the stake is delegated
-    pub voter_pubkey: Pubkey,
-    /// activated stake amount, set at delegate_stake() time
-    pub stake: u64,
-    /// epoch at which this stake was activated, std::Epoch::MAX if is a bootstrap stake
-    pub activation_epoch: Epoch,
-    /// epoch the stake was deactivated, std::Epoch::MAX if not deactivated
-    pub deactivation_epoch: Epoch,
-}
-
 #[derive(Default, Clone, PartialEq, Debug, Deserialize, Serialize)]
 pub struct Stakes {
     /// vote accounts