message: chore(core): remove coroutines from v2/coins/ofc
  Ticket:
diff: @@ -15,8 +15,6 @@ import {
  VerifyTransactionOptions,
  } from '../baseCoin';
  import { BitGo } from '../../bitgo';
  -import { NodeCallback } from '../types';
  -import * as Bluebird from 'bluebird';
  export class Ofc extends BaseCoin {
  static createInstance(bitgo: BitGo): BaseCoin {
  @@ -85,25 +83,19 @@ export class Ofc extends BaseCoin {
  return 0;
  }
  - parseTransaction(
  - params: ParseTransactionOptions,
  - callback?: NodeCallback<ParsedTransaction>
  - ): Bluebird<ParsedTransaction> {
  - return Bluebird.resolve({}).asCallback(callback);
  + async parseTransaction(params: ParseTransactionOptions): Promise<ParsedTransaction> {
  + return {};
  }
  verifyAddress(params: VerifyAddressOptions): boolean {
  return true;
  }
  - verifyTransaction(params: VerifyTransactionOptions, callback?: NodeCallback<boolean>): Bluebird<boolean> {
  - return Bluebird.resolve(true).asCallback(callback);
  + async verifyTransaction(params: VerifyTransactionOptions): Promise<boolean> {
  + return true;
  }
  - signTransaction(
  - params: SignTransactionOptions,
  - callback?: NodeCallback<SignedTransaction>
  - ): Bluebird<SignedTransaction> {
  - return Bluebird.reject(new MethodNotImplementedError()).asCallback(callback);
  + async signTransaction(params: SignTransactionOptions): Promise<SignedTransaction> {
  + throw new MethodNotImplementedError();
  }
  }
  