message: Removed modifyMultisigAccount in listener as topic doesn't exit
diff: @@ -297,24 +297,6 @@ export class Listener {
  map((_) => _.message as string));
  }
  - /**
  - * Return an observable of {@link ModifyMultisigAccountTransaction} for specific address which has been added to multi signatories.
  - * Each time an modify multi signatures transaction is announced,
  - * it emits a new {@link ModifyMultisigAccountTransaction} in the event stream.
  - *
  - * @param address address we listen when a transaction with missing signatures state
  - * @return an observable stream of ModifyMultisigAccountTransaction with missing signatures state
  - */
  - public multisigAccountAdded(address: Address): Observable<ModifyMultisigAccountTransaction> {
  - this.subscribeTo(`modifyMultisigAccount/${address.plain()}`);
  - return this.messageSubject.asObservable().pipe(
  - filter((_) => _.channelName === ListenerChannelName.modifyMultisigAccount),
  - filter((_) => _.message instanceof ModifyMultisigAccountTransaction),
  - map((_) => _.message as ModifyMultisigAccountTransaction),
  - filter((_) => this.accountAddedToMultiSig(_, address)),
  - );
  - }
  -
  /**
  * Returns an observable stream of {@link TransactionStatusError} for specific address.
  * Each time a transaction contains an error,
  