Clean up warnings in spring-test

spring-test/src/main/java/org/springframework/test/web/servlet/result/RequestResultMatchers.java

@@ -141,7 +141,6 @@ public class RequestResultMatchers {
 	/**
 	 * Assert a session attribute value.
 	 */
-	@SuppressWarnings("unchecked")
 	public <T> ResultMatcher sessionAttribute(final String name, final Object value) {
 		return result -> {
 			HttpSession session = result.getRequest().getSession();

spring-test/src/test/java/org/springframework/test/web/client/SimpleRequestExpectationManagerTests.java

@@ -169,7 +169,6 @@ public class SimpleRequestExpectationManagerTests {
 	}
 
 
-	@SuppressWarnings("deprecation")
 	private ClientHttpRequest createRequest(HttpMethod method, String url) {
 		try {
 			return new MockClientHttpRequest(method, new URI(url));