The old LiveContext API is used to access the Commerce Hub / generic commerce client from Studio and other clients. Some deprecations have now been deleted that are not needed anymore or that are not supported by the Commerce Hub. They are in detail: the AvailabilityService (not supported by the CommerceHub, should be requested directly from the commerce system), UserServer and UserSessionService (not needed anymore, the whole part of session sync between the CMS and the commerce system is gone, only the login/logout can be done via the commerce adapter), the AssetUrlProvider (is also not needed anymore).

(CMS-19221)