Use uninstall to remove SL4FJBridgeHandler

Closes gh-8933

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/logging/Slf4JLoggingSystem.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -74,13 +74,7 @@ public abstract class Slf4JLoggingSystem extends AbstractLoggingSystem {
 	private void removeJdkLoggingBridgeHandler() {
 		try {
 			if (isBridgeHandlerAvailable()) {
-				try {
-					SLF4JBridgeHandler.removeHandlersForRootLogger();
-				}
-				catch (NoSuchMethodError ex) {
-					// Method missing in older versions of SLF4J like in JBoss AS 7.1
-					SLF4JBridgeHandler.uninstall();
-				}
+				SLF4JBridgeHandler.uninstall();
 			}
 		}
 		catch (Throwable ex) {