Removed get_voting_power_ema_alpha chain ext func, unnecessary use for smart ctx

Author: LandynDev

chain-extensions/src/lib.rs

@@ -583,18 +583,6 @@ where
 
                 Ok(RetVal::Converging(Output::Success as u32))
             }
-            FunctionId::GetVotingPowerEmaAlphaV1 => {
-                let netuid: NetUid = env
-                    .read_as()
-                    .map_err(|_| DispatchError::Other("Failed to decode input parameters"))?;
-
-                let ema_alpha = pallet_subtensor::Pallet::<T>::get_voting_power_ema_alpha(netuid);
-
-                env.write_output(&ema_alpha.encode())
-                    .map_err(|_| DispatchError::Other("Failed to write output"))?;
-
-                Ok(RetVal::Converging(Output::Success as u32))
-            }
         }
     }
 }

chain-extensions/src/tests.rs

@@ -1155,30 +1155,3 @@ fn get_voting_power_disable_at_block_returns_value() {
         assert_eq!(disable_at_block, expected_block);
     });
 }
-
-#[test]
-fn get_voting_power_ema_alpha_returns_value() {
-    mock::new_test_ext(1).execute_with(|| {
-        let owner_hotkey = U256::from(9501);
-        let owner_coldkey = U256::from(9502);
-        let caller = U256::from(9503);
-
-        let netuid = mock::add_dynamic_network(&owner_hotkey, &owner_coldkey);
-
-        let expected_alpha: u64 = 500_000_000_000_000_000; // 0.5 in 18 decimal precision
-        pallet_subtensor::VotingPowerEmaAlpha::<mock::Test>::insert(netuid, expected_alpha);
-
-        let mut env = MockEnv::new(
-            FunctionId::GetVotingPowerEmaAlphaV1,
-            caller,
-            netuid.encode(),
-        );
-
-        let ret = SubtensorChainExtension::<mock::Test>::dispatch(&mut env).unwrap();
-        assert_success(ret);
-        assert!(env.charged_weight().is_none());
-
-        let ema_alpha: u64 = Decode::decode(&mut &env.output()[..]).unwrap();
-        assert_eq!(ema_alpha, expected_alpha);
-    });
-}

chain-extensions/src/types.rs

@@ -25,7 +25,6 @@ pub enum FunctionId {
     GetTotalVotingPowerV1 = 17,
     IsVotingPowerTrackingEnabledV1 = 18,
     GetVotingPowerDisableAtBlockV1 = 19,
-    GetVotingPowerEmaAlphaV1 = 20,
 }
 
 #[derive(PartialEq, Eq, Copy, Clone, Encode, Decode, Debug)]

docs/wasm-contracts.md

@@ -48,7 +48,6 @@ Subtensor provides a custom chain extension that allows smart contracts to inter
 | 17 | `get_total_voting_power` | Get total voting power across all hotkeys in a subnet | `(NetUid)` | `u64` |
 | 18 | `is_voting_power_tracking_enabled` | Check if voting power tracking is enabled for a subnet | `(NetUid)` | `bool` |
 | 19 | `get_voting_power_disable_at_block` | Get the block number at which voting power tracking will be disabled | `(NetUid)` | `Option<BlockNumber>` |
-| 20 | `get_voting_power_ema_alpha` | Get the EMA alpha value used for voting power calculations | `(NetUid)` | `u32` |
 
 Example usage in your ink! contract:
 ```rust