stake-pool: Remove redelegate from program

Author: joncinque

stake-pool/program/src/instruction.rs

@@ -1,5 +1,8 @@
 //! Instruction types
 
+// Remove the following `allow` when `Redelegate` is removed, required to avoid
+// warnings from uses of deprecated types during trait derivations.
+#![allow(deprecated)]
 #![allow(clippy::too_many_arguments)]
 
 use {
@@ -599,6 +602,10 @@ pub enum StakePoolInstruction {
     /// 13. `[]` Stake Config sysvar
     /// 14. `[]` System program
     /// 15. `[]` Stake program
+    #[deprecated(
+        since = "2.0.0",
+        note = "The stake redelegate instruction used in this will not be enabled."
+    )]
     Redelegate {
         /// Amount of lamports to redelegate
         #[allow(dead_code)] // but it's not
@@ -1051,6 +1058,10 @@ pub fn increase_additional_validator_stake(
 
 /// Creates `Redelegate` instruction (rebalance from one validator account to
 /// another)
+#[deprecated(
+    since = "2.0.0",
+    note = "The stake redelegate instruction used in this will not be enabled."
+)]
 pub fn redelegate(
     program_id: &Pubkey,
     stake_pool: &Pubkey,