MINOR: Remove ToolsUtils.scala (#18120)

Reviewers: Christo Lolov <lolovc@amazon.com>

core/src/main/scala/kafka/utils/ToolsUtils.scala

@@ -1,35 +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.
-*/
-package kafka.utils
-
-import joptsimple.OptionParser
-import org.apache.kafka.server.util.CommandLineUtils
-
-object ToolsUtils {
-  /**
-   * This is a simple wrapper around `CommandLineUtils.printUsageAndExit`.
-   * It is needed for tools migration (KAFKA-14525), as there is no Java equivalent for return type `Nothing`.
-   * Can be removed once ZooKeeper related code are deleted.
-   *
-   * @param parser Command line options parser.
-   * @param message Error message.
-   */
-  def printUsageAndExit(parser: OptionParser, message: String): Nothing = {
-    CommandLineUtils.printUsageAndExit(parser, message)
-    throw new AssertionError("printUsageAndExit should not return, but it did.")
-  }
-}