remove some boilerplate (#4143)

programs/stake_api/src/lib.rs

@@ -1,17 +1,9 @@
 pub mod stake_instruction;
 pub mod stake_state;
 
-use solana_sdk::pubkey::Pubkey;
-
 const STAKE_PROGRAM_ID: [u8; 32] = [
     6, 161, 216, 23, 145, 55, 84, 42, 152, 52, 55, 189, 254, 42, 122, 178, 85, 127, 83, 92, 138,
     120, 114, 43, 104, 164, 157, 192, 0, 0, 0, 0,
 ];
 
-pub fn check_id(program_id: &Pubkey) -> bool {
-    program_id.as_ref() == STAKE_PROGRAM_ID
-}
-
-pub fn id() -> Pubkey {
-    Pubkey::new(&STAKE_PROGRAM_ID)
-}
+solana_sdk::solana_program_id!(STAKE_PROGRAM_ID);