Polish "Remove redundant auto-configuration of SI Micrometer metrics"

Closes gh-12287

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/resources/META-INF/spring.factories

@@ -49,7 +49,6 @@ org.springframework.boot.actuate.autoconfigure.metrics.export.signalfx.SignalFxM
 org.springframework.boot.actuate.autoconfigure.metrics.export.statsd.StatsdMetricsExportAutoConfiguration,\
 org.springframework.boot.actuate.autoconfigure.metrics.export.wavefront.WavefrontMetricsExportAutoConfiguration,\
 org.springframework.boot.actuate.autoconfigure.metrics.jdbc.DataSourcePoolMetricsAutoConfiguration,\
-org.springframework.boot.actuate.autoconfigure.metrics.integration.IntegrationMetricsAutoConfiguration,\
 org.springframework.boot.actuate.autoconfigure.metrics.web.client.RestTemplateMetricsAutoConfiguration,\
 org.springframework.boot.actuate.autoconfigure.metrics.web.reactive.WebFluxMetricsAutoConfiguration,\
 org.springframework.boot.actuate.autoconfigure.metrics.web.servlet.WebMvcMetricsAutoConfiguration,\

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/integration/IntegrationMetricsAutoConfigurationTests.java

@@ -1,67 +0,0 @@
-/*
- * 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.
- * 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.boot.actuate.autoconfigure.metrics.integration;
-
-import io.micrometer.core.instrument.MeterRegistry;
-import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
-import org.junit.Test;
-
-import org.springframework.boot.autoconfigure.AutoConfigurations;
-import org.springframework.boot.autoconfigure.integration.IntegrationAutoConfiguration;
-import org.springframework.boot.test.context.runner.ApplicationContextRunner;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.integration.support.MessageBuilder;
-import org.springframework.messaging.Message;
-import org.springframework.messaging.SubscribableChannel;
-
-/**
- * Tests for {@link IntegrationMetricsAutoConfiguration}.
- *
- * @author Phillip Webb
- * @author Gary Russell
- */
-public class IntegrationMetricsAutoConfigurationTests {
-
-	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
-			.withConfiguration(AutoConfigurations.of(IntegrationAutoConfiguration.class))
-			.withUserConfiguration(BaseConfiguration.class)
-			.withPropertyValues("spring.jmx.enabled=false");
-
-	@Test
-	public void autoConfiguredIntegrationIsInstrumented() {
-		this.contextRunner.run((context) -> {
-			Message<?> message = MessageBuilder.withPayload("hello").build();
-			SubscribableChannel channel = context.getBean("errorChannel",
-					SubscribableChannel.class);
-			channel.send(message);
-			MeterRegistry registry = context.getBean(MeterRegistry.class);
-			registry.get("spring.integration.send").tag("name", "errorChannel").timer();
-		});
-	}
-
-	@Configuration
-	static class BaseConfiguration {
-
-		@Bean
-		public SimpleMeterRegistry simpleMeterRegistry() {
-			return new SimpleMeterRegistry();
-		}
-
-	}
-
-}