MatrixClient stores HS when logging in / registering, but not when creating with token

When a client instance logs in / registers, the response contains, among other things, a home_server field. Currently, this information is stored as a .hs member of the instance. However, if the MatrixClient is created with an exiting token, no such registration/login takes plave, hence no response is received, and the instance doesn't set this member -- which means that code can't rely on its being there.

At the moment, this information isn't used anywhere in the code, so probably the best thing to do is to just remove it.

Beginnen Sie damit, die Klasse MatrixClient sowie ihre Pfade für Login, Registrierung und tokenbasierte Initialisierung zu lokalisieren. Suchen Sie nach dem Member .hs und bestätigen Sie, dass es ungenutzt ist, bevor Sie die inkonsistente Speicherung entfernen; führen Sie die vorhandene Testsuite aus, um zu überprüfen, dass die Erstellung des Clients und das Authentifizierungsverhalten weiterhin intakt sind.