flat-union-inline.json covers longhand branch definition with an
invalid type value. It's redundant: longhand branch definition is
covered by flat-union-inline-invalid-dict.json, and invalid type value
is covered by nested-struct-data.json. Drop the test.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210323094025.3569441-3-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>