improve performance : excessive check removed (#1053)

* improve performance : excessive check removed

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/annotation/SleuthAdvisorConfig.java

@@ -105,7 +105,8 @@ class SleuthAdvisorConfig extends AbstractPointcutAdvisor implements BeanFactory
 
 		@Override
 		public boolean matches(Method method, Class<?> targetClass, Object... args) {
-			return getClassFilter().matches(targetClass);
+			 //Skip check here as actual check takes place in SleuthInterceptor.invoke(MethodInvocation)
+			return true;
 		}
 
 		@Override public ClassFilter getClassFilter() {