Remove dummy test_interface (#9848)

Signed-off-by: yudong.cai <yudong.cai@zilliz.com>

internal/core/unittest/CMakeLists.txt

@@ -27,7 +27,6 @@ set(MILVUS_TEST_FILES
         test_indexing.cpp
         test_index_wrapper.cpp
         test_init.cpp
-        test_interface.cpp
         test_naive.cpp
         test_plan_proto.cpp
         test_query.cpp

internal/core/unittest/test_interface.cpp

@@ -1,17 +0,0 @@
-// Copyright (C) 2019-2020 Zilliz. 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
-
-#include <gtest/gtest.h>
-
-#include "segcore/SegmentInterface.h"
-
-TEST(Interface, Naive) {
-}