Merge pull request #22686 from owncloud/cleanup_remote_address_books

apps/dav/appinfo/app.php

apps/dav/appinfo/application.php

apps/dav/lib/carddav/syncservice.php

apps/dav/tests/unit/carddav/syncservicetest.php

apps/federation/appinfo/application.php

apps/federation/appinfo/database.xml

apps/federation/appinfo/info.xml

apps/federation/backgroundjob/getsharedsecret.php

apps/federation/backgroundjob/requestsharedsecret.php

apps/federation/command/syncfederationaddressbooks.php

apps/federation/lib/dbhandler.php

apps/federation/lib/syncfederationaddressbooks.php

apps/federation/lib/trustedservers.php

apps/federation/settings/settings-admin.php

apps/federation/templates/settings-admin.php

apps/federation/tests/lib/dbhandlertest.php

apps/federation/tests/lib/syncfederationaddressbookstest.php

apps/federation/tests/lib/trustedserverstest.php