message: Remove redundant API for getting country prefix
diff: @@ -73,10 +73,6 @@ export default class CountryDropdown extends React.Component {
  );
  }
  - getCountryPrefix(iso2) {
  - return COUNTRIES_BY_ISO2[iso2].prefix;
  - }
  -
  render() {
  const Dropdown = sdk.getComponent('elements.Dropdown');
  