Testing: Remove unused junit rule (#17947)

This rule was used to repeat failed tests due to binding on an already bound port. The test has been fixed
so we can get rid of this rule as well.

buildSrc/src/main/resources/checkstyle_suppressions.xml

@@ -1450,7 +1450,6 @@
   <suppress files="test[/\\]framework[/\\]src[/\\]main[/\\]java[/\\]org[/\\]elasticsearch[/\\]test[/\\]engine[/\\]MockInternalEngine.java" checks="LineLength" />
   <suppress files="test[/\\]framework[/\\]src[/\\]main[/\\]java[/\\]org[/\\]elasticsearch[/\\]test[/\\]hamcrest[/\\]ElasticsearchAssertions.java" checks="LineLength" />
   <suppress files="test[/\\]framework[/\\]src[/\\]main[/\\]java[/\\]org[/\\]elasticsearch[/\\]test[/\\]junit[/\\]listeners[/\\]LoggingListener.java" checks="LineLength" />
-  <suppress files="test[/\\]framework[/\\]src[/\\]main[/\\]java[/\\]org[/\\]elasticsearch[/\\]test[/\\]junit[/\\]rule[/\\]RepeatOnExceptionRule.java" checks="LineLength" />
   <suppress files="test[/\\]framework[/\\]src[/\\]main[/\\]java[/\\]org[/\\]elasticsearch[/\\]test[/\\]rest[/\\]ESRestTestCase.java" checks="LineLength" />
   <suppress files="test[/\\]framework[/\\]src[/\\]main[/\\]java[/\\]org[/\\]elasticsearch[/\\]test[/\\]rest[/\\]RestTestExecutionContext.java" checks="LineLength" />
   <suppress files="test[/\\]framework[/\\]src[/\\]main[/\\]java[/\\]org[/\\]elasticsearch[/\\]test[/\\]rest[/\\]client[/\\]RestClient.java" checks="LineLength" />

test/framework/src/main/java/org/elasticsearch/test/junit/rule/RepeatOnExceptionRule.java

@@ -1,80 +0,0 @@
-/*
- * Licensed to Elasticsearch under one or more contributor
- * license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright
- * ownership. Elasticsearch 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 org.elasticsearch.test.junit.rule;
-
-import org.elasticsearch.common.logging.ESLogger;
-import org.junit.rules.TestRule;
-import org.junit.runner.Description;
-import org.junit.runners.model.Statement;
-
-/**
- * A helper rule to catch all BindTransportExceptions
- * and rerun the test for a configured number of times
- *
- * Note: Be aware, that when a test is repeated, the @After and @Before
- * annotated methods are not run a second time
- *
- */
-public class RepeatOnExceptionRule implements TestRule {
-
-    private ESLogger logger;
-    private int retryCount;
-    private Class expectedException;
-
-    /**
-     *
-     * @param logger the es logger from the test class
-     * @param retryCount number of amounts to try a single test before failing
-     * @param expectedException The exception class you want to catch
-     *
-     */
-    public RepeatOnExceptionRule(ESLogger logger, int retryCount, Class expectedException) {
-        this.logger = logger;
-        this.retryCount = retryCount;
-        this.expectedException = expectedException;
-    }
-
-    @Override
-    public Statement apply(final Statement base, Description description) {
-
-        return new Statement() {
-            @Override
-            public void evaluate() throws Throwable {
-                Throwable caughtThrowable = null;
-
-                for (int i = 0; i < retryCount; i++) {
-                    try {
-                        base.evaluate();
-                        return;
-                    } catch (Throwable t) {
-                        if (t.getClass().equals(expectedException)) {
-                            caughtThrowable = t;
-                            logger.info("Exception [{}] occurred, rerunning the test after [{}] failures", t, t.getClass().getSimpleName(), i+1);
-                        } else {
-                            throw t;
-                        }
-                    }
-                }
-                logger.error("Giving up after [{}] failures... marking test as failed", retryCount);
-                throw caughtThrowable;
-            }
-        };
-
-    }
-}