Remove 8.0+ test

Author: swallez

java-client/src/test/java/co/elastic/clients/elasticsearch/end_to_end/RequestTest.java

@@ -44,14 +44,11 @@
 import co.elastic.clients.elasticsearch.indices.IndexState;
 import co.elastic.clients.elasticsearch.model.ModelTestCase;
 import co.elastic.clients.transport.endpoints.BooleanResponse;
-import co.elastic.clients.util.DateTime;
 import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
 import java.io.IOException;
-import java.time.Instant;
-import java.time.format.DateTimeFormatter;
 import java.util.Collections;
 import java.util.Map;
 import java.util.concurrent.CompletableFuture;
@@ -73,14 +70,6 @@ public void testCount() throws Exception {
         assertTrue(client.count().count() >= 0);
     }
 
-    @Test
-    public void testBuildTime() throws Exception {
-        DateTime buildTime = client.info().version().buildDate();
-        Instant early2020 = DateTimeFormatter.ISO_INSTANT.parse("2020-01-01T00:00:00Z", Instant::from);
-
-        assertTrue(early2020.isBefore(buildTime.toInstant()));
-    }
-
     @Test
     public void testIndexCreation() throws Exception {
         ElasticsearchAsyncClient asyncClient = new ElasticsearchAsyncClient(client._transport());