message: SecurityUserSettingsTab: Put the event index settings behind the feature flag.
diff: @@ -254,12 +254,15 @@ export default class SecurityUserSettingsTab extends React.Component {
  </div>
  );
  - const eventIndex = (
  + let eventIndex;
  + if (SettingsStore.isFeatureEnabled("feature_event_indexing")) {
  + eventIndex = (
  <div className="mx_SettingsTab_section">
  <span className="mx_SettingsTab_subheading">{_t("Message search")}</span>
  <EventIndexPanel />
  </div>
  );
  + }
  // XXX: There's no such panel in the current cross-signing designs, but
  // it's useful to have for testing the feature. If there's no interest
  