Revert SpringBootContextLoader and ErrorPageFilterIntegrationTests changes"

Spring Framework has change the signature so we no longer need the updates.

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/context/SpringBootContextLoader.java

@@ -84,13 +84,7 @@ import org.springframework.web.context.support.GenericWebApplicationContext;
 public class SpringBootContextLoader extends AbstractContextLoader {
 
 	@Override
-	@Deprecated
 	public ApplicationContext loadContext(MergedContextConfiguration config) throws Exception {
-		return loadContext(config, true);
-	}
-
-	@Override
-	public ApplicationContext loadContext(MergedContextConfiguration config, boolean refresh) throws Exception {
 		Class<?>[] configClasses = config.getClasses();
 		String[] configLocations = config.getLocations();
 		Assert.state(!ObjectUtils.isEmpty(configClasses) || !ObjectUtils.isEmpty(configLocations),
@@ -135,7 +129,6 @@ public class SpringBootContextLoader extends AbstractContextLoader {
 			application.addListeners(new PrepareEnvironmentListener(config));
 		}
 		String[] args = SpringBootTestArgs.get(config.getContextCustomizers());
-		Assert.isTrue(refresh, "SpringBootContextLoader and only return refreshed contexts");
 		return application.run(args);
 	}
 

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/servlet/support/ErrorPageFilterIntegrationTests.java

@@ -179,13 +179,7 @@ class ErrorPageFilterIntegrationTests {
 		private static final String[] EMPTY_RESOURCE_SUFFIXES = {};
 
 		@Override
-		@Deprecated
-		public ApplicationContext loadContext(MergedContextConfiguration mergedConfig) throws Exception {
-			return loadContext(mergedConfig, true);
-		}
-
-		@Override
-		public ApplicationContext loadContext(MergedContextConfiguration config, boolean refresh) {
+		public ApplicationContext loadContext(MergedContextConfiguration config) {
 			AnnotationConfigServletWebServerApplicationContext context = new AnnotationConfigServletWebServerApplicationContext(
 					config.getClasses());
 			context.registerShutdownHook();