test/pybind: drop forward and readforward from test

these two write modes were dropped in
a0a3ed324a130a9934735927600f01d1fa65bc0d, so update the test
accordingly.

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/test/pybind/test_ceph_argparse.py b/src/test/pybind/test_ceph_argparse.py
index 38d20a53f567973829c63ff00189e39906350e59..529b9c209b417896c04f20a47f53ff24ac9416f2 100755 (executable)
--- a/src/test/pybind/test_ceph_argparse.py
+++ b/src/test/pybind/test_ceph_argparse.py
@@ -1172,7 +1172,7 @@ class TestOSD(TestArgparse):
                                                         'toomany']))
 
     def test_tier_cache_mode(self):
-        for mode in ('none', 'writeback', 'forward', 'readonly', 'readforward', 'readproxy'):
+        for mode in ('none', 'writeback', 'readonly', 'readproxy'):
             self.assert_valid_command(['osd', 'tier', 'cache-mode',
                                        'poolname', mode])
         assert_equal({}, validate_command(sigdict, ['osd', 'tier',