test: remove connection_closed from test

apps/emqx/test/emqx_connection_SUITE.erl

@@ -274,7 +274,6 @@ t_handle_msg_event(_) ->
     ok = meck:expect(emqx_cm, register_channel, fun(_, _, _) -> ok end),
     ok = meck:expect(emqx_cm, insert_channel_info, fun(_, _, _) -> ok end),
     ok = meck:expect(emqx_cm, set_chan_info, fun(_, _) -> ok end),
-    ok = meck:expect(emqx_cm, connection_closed, fun(_) -> ok end),
     ?assertEqual(ok, handle_msg({event, connected}, st())),
     ?assertMatch({ok, _St}, handle_msg({event, disconnected}, st())),
     ?assertMatch({ok, _St}, handle_msg({event, undefined}, st())).

apps/emqx/test/emqx_ws_connection_SUITE.erl

@@ -483,7 +483,6 @@ t_handle_info_close(_) ->
 t_handle_info_event(_) ->
     ok = meck:expect(emqx_cm, register_channel, fun(_, _, _) -> ok end),
     ok = meck:expect(emqx_cm, insert_channel_info, fun(_, _, _) -> ok end),
-    ok = meck:expect(emqx_cm, connection_closed, fun(_) -> true end),
     {ok, _} = ?ws_conn:handle_info({event, connected}, st()),
     {ok, _} = ?ws_conn:handle_info({event, disconnected}, st()),
     {ok, _} = ?ws_conn:handle_info({event, updated}, st()).