chore: delete unused schema module

apps/emqx_management/src/emqx_management_schema.erl

@@ -1,32 +0,0 @@
-%%--------------------------------------------------------------------
-%% Copyright (c) 2020-2022 EMQ Technologies Co., Ltd. All Rights Reserved.
-%%
-%% Licensed under the Apache License, Version 2.0 (the "License");
-%% you may not use this file except in compliance with the License.
-%% You may obtain a copy of the License at
-%%
-%%     http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%%--------------------------------------------------------------------
--module(emqx_management_schema).
-
--include_lib("typerefl/include/types.hrl").
-
--behaviour(hocon_schema).
-
--export([
-    namespace/0,
-    roots/0,
-    fields/1
-]).
-
-namespace() -> management.
-
-roots() -> [].
-
-fields(_) -> [].