[minor](non-vec) delete unused interface in RowBatch (#15186)

be/src/runtime/row_batch.h

@@ -29,7 +29,6 @@
 #include "runtime/descriptors.h"
 #include "runtime/disk_io_mgr.h"
 #include "runtime/mem_pool.h"
-#include "runtime/row_batch_interface.hpp"
 
 namespace doris::vectorized {
 class Block;
@@ -73,7 +72,7 @@ class PRowBatch;
 // A row batch is considered at capacity if all the rows are full or it has accumulated
 // auxiliary memory up to a soft cap. (See _at_capacity_mem_usage comment).
 // TODO: stick _tuple_ptrs into a pool?
-class RowBatch : public RowBatchInterface {
+class RowBatch {
 public:
     /// Flag indicating whether the resources attached to a RowBatch need to be flushed.
     /// Defined here as a convenience for other modules that need to communicate flushing

be/src/runtime/row_batch_interface.hpp

@@ -1,27 +0,0 @@
-// Licensed to the Apache Software Foundation (ASF) under one
-// or more contributor license agreements.  See the NOTICE file
-// distributed with this work for additional information
-// regarding copyright ownership.  The ASF licenses this file
-// to you 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.
-
-#pragma once
-
-namespace doris {
-
-class RowBatchInterface {
-public:
-    virtual ~RowBatchInterface() {}
-};
-
-} // namespace doris