fix remove stake for Alpha

pallets/subtensor/src/staking/remove_stake.rs

@@ -79,15 +79,16 @@ impl<T: Config> Pallet<T> {
         );
 
         // Convert and unstake from the subnet.
-        let tao_unstaked: u64 =
+        let alpha_unstaked: u64 =
             Self::unstake_from_subnet(&hotkey, &coldkey, netuid, alpha_unstaked);
 
         // We add the balance to the coldkey.  If the above fails we will not credit this coldkey.
-        Self::add_balance_to_coldkey_account(&coldkey, tao_unstaked);
+        Self::add_alpha_balance_to_coldkey_account(&coldkey, alpha_unstaked, netuid);
 
         // If the stake is below the minimum, we clear the nomination from storage.
         // This only applies to nominator stakes.
         // If the coldkey does not own the hotkey, it's a nominator stake.
+        // TODO (cam): handle using top-k
         let new_stake = Self::get_stake_for_hotkey_and_coldkey_on_subnet(&hotkey, &coldkey, netuid);
         Self::clear_small_nomination_if_required(&hotkey, &coldkey, netuid, new_stake);
 
@@ -103,9 +104,9 @@ impl<T: Config> Pallet<T> {
             block,
         );
         log::debug!(
-            "StakeRemoved( hotkey:{:?}, tao_unstaked:{:?} )",
+            "StakeRemoved( hotkey:{:?}, alpha_unstaked:{:?} )",
             hotkey.clone(),
-            tao_unstaked
+            alpha_unstaked
         );
 
         // Done and ok.