Support for events with an array of memberships from different devices was removed over a year ago in matrix-js-sdk ffd3c9575e9def576739baf6b1dc329b0db55c0c.
* Change EULA to SSLA
- rename i18n fields
- update the config property to `ssla` and deprecate `eula`
- use `eula` instead of ssla in case it is provided in the config.
* fix default config
* completely remove eula fallback