Add license text and remove commented out test code

spring-cloud-gateway-core/src/main/java/org/springframework/cloud/gateway/filter/GatewayMetricsFilter.java

@@ -1,3 +1,20 @@
+/*
+ * Copyright 2013-2017 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.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
 package org.springframework.cloud.gateway.filter;
 
 import static org.springframework.cloud.gateway.support.ServerWebExchangeUtils.GATEWAY_ROUTE_ATTR;

spring-cloud-gateway-core/src/test/java/org/springframework/cloud/gateway/filter/GatewayMetricFilterTests.java

@@ -122,12 +122,6 @@ public class GatewayMetricFilterTests extends BaseWebClientTests {
 
 		@Bean
 		public RouteLocator myRouteLocator(RouteLocatorBuilder builder) {
-			// return builder.routes().route("test_bad_target_uri", r ->
-			// r.host("*.badtarget.org").uri(testUri))
-			// .route("test_custom_http_status",
-			// r -> r.host("*.setcustomstatus.org").filters(f ->
-			// f.setStatus(432)).uri(testUri))
-			// .build();
 			return builder.routes()
 					.route("test_custom_http_status", r -> r.host("*.setcustomstatus.org")
 							.filters(f -> f.setStatus(432)).uri(testUri))