Tidied imports.

core/src/main/java/org/springframework/security/config/GlobalMethodSecurityBeanDefinitionParser.java

@@ -1,13 +1,11 @@
 package org.springframework.security.config;
 
-import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
 import org.springframework.aop.config.AopNamespaceUtils;
-import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.beans.factory.config.RuntimeBeanReference;
 import org.springframework.beans.factory.support.BeanDefinitionBuilder;