Fix tests
Fix tests

The avatar plugin should not change the display element, since the
avatar is always shown by default and the display value is up to the
developers

Signed-off-by: Julius Härtl <bf353fa4999f2f148afcc6d8ee6cb1ee74cc07c3@bitgrid.net>

nextcloud/server,andreas-p/nextcloud-server,michaelletzgus/nextcloud-server,michaelletzgus/nextcloud-server,michaelletzgus/nextcloud-server,nextcloud/server,andreas-p/nextcloud-server,andreas-p/nextcloud-server,andreas-p/nextcloud-server,michaelletzgus/nextcloud-server,nextcloud/server,andreas-p/nextcloud-server,nextcloud/server