Fix HasChildQueryBuilderTests to not use the classic similarity.

Closes #29362

Author: jpountz

modules/parent-join/src/test/java/org/elasticsearch/join/query/HasChildQueryBuilderTests.java

@@ -31,7 +31,6 @@
 import org.apache.lucene.search.join.ScoreMode;
 import org.apache.lucene.search.similarities.PerFieldSimilarityWrapper;
 import org.apache.lucene.search.similarities.Similarity;
-import org.apache.lucene.util.LuceneTestCase;
 import org.elasticsearch.Version;
 import org.elasticsearch.cluster.metadata.IndexMetaData;
 import org.elasticsearch.common.Strings;
@@ -73,7 +72,6 @@
 import static org.hamcrest.CoreMatchers.instanceOf;
 import static org.hamcrest.CoreMatchers.notNullValue;
 
-@LuceneTestCase.AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/29362")
 public class HasChildQueryBuilderTests extends AbstractQueryTestCase<HasChildQueryBuilder> {
 
     private static final String TYPE = "_doc";
@@ -99,7 +97,7 @@ protected Settings indexSettings() {
 
     @Override
     protected void initializeAdditionalMappings(MapperService mapperService) throws IOException {
-        similarity = randomFrom("classic", "BM25");
+        similarity = randomFrom("boolean", "BM25");
         XContentBuilder mapping = jsonBuilder().startObject().startObject("_doc").startObject("properties")
             .startObject("join_field")
                 .field("type", "join")