Align with DispatcherServlet changes

The `shouldHandleFailure` configuration option has been removed from
`DispatcherServlet`.

See gh-13511

Author: bclozel

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/servlet/DispatcherServletAutoConfigurationTests.java

@@ -170,8 +170,6 @@ public void dispatcherServletDefaultConfig() {
 		this.contextRunner.run((context) -> {
 			DispatcherServlet dispatcherServlet = context
 					.getBean(DispatcherServlet.class);
-			assertThat(dispatcherServlet).extracting("shouldHandleFailure")
-					.containsExactly(false);
 			assertThat(dispatcherServlet).extracting("throwExceptionIfNoHandlerFound")
 					.containsExactly(false);
 			assertThat(dispatcherServlet).extracting("dispatchOptionsRequest")