fix: minor fixes

TICKET: WIN-4296

modules/abstract-substrate/src/lib/utils.ts

@@ -1,11 +1,10 @@
 import { DotAssetTypes, BaseUtils, DotAddressFormat, isBase58, isValidEd25519PublicKey, Seed } from '@bitgo/sdk-core';
-import { decodeAddress, encodeAddress, Keyring } from '@polkadot/keyring';
-import { decodePair } from '@polkadot/keyring/pair/decode';
+import { decodeAddress, encodeAddress } from '@polkadot/keyring';
 import { KeyringPair } from '@polkadot/keyring/types';
 import { createTypeUnsafe, GenericCall, GenericExtrinsic, GenericExtrinsicPayload } from '@polkadot/types';
 import { EXTRINSIC_VERSION } from '@polkadot/types/extrinsic/v4/Extrinsic';
 import { hexToU8a, isHex, u8aToHex, u8aToU8a } from '@polkadot/util';
-import { base64Decode, signatureVerify } from '@polkadot/util-crypto';
+import { signatureVerify } from '@polkadot/util-crypto';
 import { Args, BaseTxInfo, defineMethod, OptionsWithMeta, UnsignedTransaction } from '@substrate/txwrapper-core';
 import { DecodedSignedTx, DecodedSigningPayload, TypeRegistry } from '@substrate/txwrapper-core/lib/types';
 import { construct } from '@substrate/txwrapper-polkadot';
@@ -29,7 +28,6 @@ import {
   TxMethod,
   UnstakeBatchCallArgs,
 } from './iface';
-import { KeyPair } from '.';
 
 const PROXY_METHOD_ARG = 2;
 // map to retrieve the address encoding format when the key is the asset name
@@ -160,19 +158,6 @@ export class Utils implements BaseUtils {
     return decodedArgs.args;
   }
 
-  /**
-   * keyPairFromSeed generates an object with secretKey and publicKey using the substrate sdk
-   * @param seed 32 bytes long seed
-   * @returns KeyPair
-   */
-  keyPairFromSeed(seed: Uint8Array): KeyPair {
-    const keyring = new Keyring({ type: 'ed25519' });
-    const keyringPair = keyring.addFromSeed(seed);
-    const pairJson = keyringPair.toJson();
-    const decodedKeyPair = decodePair('', base64Decode(pairJson.encoded), pairJson.encoding.type);
-    return new KeyPair({ prv: Buffer.from(decodedKeyPair.secretKey).toString('hex') });
-  }
-
   /**
    * Signing function. Implement this on the OFFLINE signing device.
    *
@@ -216,18 +201,6 @@ export class Utils implements BaseUtils {
     });
   }
 
-  /**
-   * Decodes the substrate address from the given format
-   *
-   * @param {string} address
-   * @param {number} [ss58Format]
-   * @returns {string}
-   */
-  decodeSubstrateAddress(address: string, ss58Format: number): string {
-    const keypair = new KeyPair({ pub: Buffer.from(decodeAddress(address, undefined, ss58Format)).toString('hex') });
-    return keypair.getAddress(ss58Format);
-  }
-
   /**
    * Decodes the substrate address from the given format
    *
@@ -424,17 +397,6 @@ export class Utils implements BaseUtils {
     return signature;
   }
 
-  /**
-   * Decodes the dot address from the given format
-   *
-   * @param {string} address
-   * @param {number} [ss58Format]
-   * @returns {KeyPair}
-   */
-  decodeSubstrateAddressToKeyPair(address: string, ss58Format?: number): KeyPair {
-    return new KeyPair({ pub: Buffer.from(decodeAddress(address, undefined, ss58Format)).toString('hex') });
-  }
-
   /**
    * Checks whether the given input is a hex string with with 0 value
    * used to check whether a given transaction is immortal or mortal

modules/sdk-coin-tao/src/tao.ts

@@ -9,7 +9,7 @@ import {
   VerifyTransactionOptions,
 } from '@bitgo/sdk-core';
 import { BaseCoin as StaticsBaseCoin } from '@bitgo/statics';
-import { SubstrateCoin, Utils } from '@bitgo/abstract-substrate';
+import { Interface, SubstrateCoin, Utils } from '@bitgo/abstract-substrate';
 import { TaoKeyPair } from './lib';
 
 const utils = Utils.default;