Split SDK's timing.rs (#5823)

programs/stake_api/src/stake_instruction.rs

@@ -7,10 +7,10 @@ use log::*;
 use serde_derive::{Deserialize, Serialize};
 use solana_sdk::{
     account::KeyedAccount,
+    clock::Slot,
     instruction::{AccountMeta, Instruction, InstructionError},
     pubkey::Pubkey,
     system_instruction, sysvar,
-    timing::Slot,
 };
 
 #[derive(Serialize, Deserialize, Debug, PartialEq, Eq, Clone)]

programs/stake_api/src/stake_state.rs

@@ -9,6 +9,7 @@ use serde_derive::{Deserialize, Serialize};
 use solana_sdk::{
     account::{Account, KeyedAccount},
     account_utils::State,
+    clock::{Epoch, Slot},
     instruction::InstructionError,
     instruction_processor_utils::DecodeError,
     pubkey::Pubkey,
@@ -16,7 +17,6 @@ use solana_sdk::{
         self,
         stake_history::{StakeHistory, StakeHistoryEntry},
     },
-    timing::{Epoch, Slot},
 };
 use solana_vote_api::vote_state::VoteState;