Remove testMappingsPropagatedToMasterNodeImmediately

This test is obsolete since #31140 where an index request with dynamic
mapping update no longer requires acking.

Closes #37816

Author: dnhatn

server/src/test/java/org/elasticsearch/index/mapper/DynamicMappingIT.java

@@ -34,8 +34,6 @@
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.atomic.AtomicReference;
 
-import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked;
-
 public class DynamicMappingIT extends ESIntegTestCase {
 
     @Override
@@ -75,21 +73,6 @@ private static void assertMappingsHaveField(GetMappingsResponse mappings, String
         assertTrue("Could not find [" + field + "] in " + typeMappingsMap.toString(), properties.containsKey(field));
     }
 
-    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/37816")
-    public void testMappingsPropagatedToMasterNodeImmediately() throws IOException {
-        assertAcked(prepareCreate("index"));
-
-        // works when the type has been dynamically created
-        client().prepareIndex("index", "type", "1").setSource("foo", 3).get();
-        GetMappingsResponse mappings = client().admin().indices().prepareGetMappings("index").setTypes("type").get();
-        assertMappingsHaveField(mappings, "index", "type", "foo");
-
-        // works if the type already existed
-        client().prepareIndex("index", "type", "1").setSource("bar", "baz").get();
-        mappings = client().admin().indices().prepareGetMappings("index").setTypes("type").get();
-        assertMappingsHaveField(mappings, "index", "type", "bar");
-    }
-
     public void testConcurrentDynamicUpdates() throws Throwable {
         createIndex("index");
         final Thread[] indexThreads = new Thread[32];