Clean up warnings in spring-test

spring-test/src/main/java/org/springframework/test/web/reactive/server/DefaultControllerSpec.java

@@ -25,7 +25,6 @@ import java.util.function.Consumer;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.format.FormatterRegistry;
-import org.springframework.http.codec.HttpMessageWriter;
 import org.springframework.http.codec.ServerCodecConfigurer;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
@@ -141,8 +140,6 @@ class DefaultControllerSpec extends AbstractMockServerSpec<WebTestClient.Control
 
 		private Consumer<ServerCodecConfigurer> messageCodecsConsumer;
 
-		private Consumer<List<HttpMessageWriter<?>>> writersConsumer;
-
 		private Consumer<FormatterRegistry> formattersConsumer;
 
 		private Validator validator;

spring-test/src/test/java/org/springframework/test/web/reactive/server/WebTestClientConnectorTests.java

@@ -43,7 +43,6 @@ import static org.junit.Assert.*;
 public class WebTestClientConnectorTests {
 
 	@Test
-	@SuppressWarnings("deprecation")
 	public void captureAndClaim() throws Exception {
 		ClientHttpRequest request = new MockClientHttpRequest(HttpMethod.GET, "/test");
 		ClientHttpResponse response = new MockClientHttpResponse(HttpStatus.OK);

spring-test/src/test/java/org/springframework/test/web/reactive/server/samples/ResponseEntityTests.java

@@ -146,7 +146,6 @@ public class ResponseEntityTests {
 		}
 
 		@GetMapping(produces = "text/event-stream")
-		@SuppressWarnings("deprecation")
 		Flux<Person> getPersonStream() {
 			return Flux.intervalMillis(100).onBackpressureBuffer(10).map(index -> new Person("N" + index));
 		}