Update samples to use configuration properties scanning

Closes gh-12602

spring-boot-samples/spring-boot-sample-actuator-noweb/src/main/java/sample/actuator/noweb/SampleActuatorNoWebApplication.java

@@ -18,10 +18,8 @@ package sample.actuator.noweb;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.context.properties.EnableConfigurationProperties;
 
 @SpringBootApplication
-@EnableConfigurationProperties(ServiceProperties.class)
 public class SampleActuatorNoWebApplication {
 
 	public static void main(String[] args) {

spring-boot-samples/spring-boot-sample-actuator/src/main/java/sample/actuator/SampleActuatorApplication.java

@@ -20,11 +20,9 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.actuate.health.Health;
 import org.springframework.boot.actuate.health.HealthIndicator;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 
 @SpringBootApplication
-@EnableConfigurationProperties(ServiceProperties.class)
 public class SampleActuatorApplication {
 
 	public static void main(String[] args) {

spring-boot-samples/spring-boot-sample-integration/src/main/java/sample/integration/SampleIntegrationApplication.java

@@ -20,7 +20,6 @@ import java.util.function.Consumer;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.integration.channel.DirectChannel;
 import org.springframework.integration.dsl.IntegrationFlow;
@@ -31,7 +30,6 @@ import org.springframework.integration.file.FileReadingMessageSource;
 import org.springframework.integration.file.FileWritingMessageHandler;
 
 @SpringBootApplication
-@EnableConfigurationProperties(ServiceProperties.class)
 public class SampleIntegrationApplication {
 
 	private final ServiceProperties serviceProperties;

spring-boot-samples/spring-boot-sample-parent-context/src/main/java/sample/parent/SampleParentContextApplication.java

@@ -21,7 +21,6 @@ import java.util.function.Consumer;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.builder.SpringApplicationBuilder;
-import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.integration.channel.DirectChannel;
@@ -42,7 +41,6 @@ public class SampleParentContextApplication {
 
 	@Configuration(proxyBeanMethods = false)
 	@EnableAutoConfiguration
-	@EnableConfigurationProperties(ServiceProperties.class)
 	protected static class Parent {
 
 		private final ServiceProperties serviceProperties;

spring-boot-samples/spring-boot-sample-property-validation/src/main/java/sample/propertyvalidation/SampleProperties.java

@@ -17,10 +17,8 @@
 package sample.propertyvalidation;
 
 import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.stereotype.Component;
 import org.springframework.validation.annotation.Validated;
 
-@Component
 @ConfigurationProperties(prefix = "sample")
 @Validated
 public class SampleProperties {

spring-boot-samples/spring-boot-sample-simple/src/main/java/sample/simple/SampleConfigurationProperties.java

@@ -19,11 +19,9 @@ package sample.simple;
 import javax.validation.constraints.NotNull;
 
 import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.stereotype.Component;
 import org.springframework.validation.annotation.Validated;
 
 @Validated
-@Component
 @ConfigurationProperties(prefix = "sample")
 public class SampleConfigurationProperties {
 

spring-boot-samples/spring-boot-sample-test/src/main/java/sample/test/service/ServiceProperties.java

@@ -17,14 +17,12 @@
 package sample.test.service;
 
 import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.stereotype.Component;
 
 /**
  * Properties for the service.
  *
  * @author Phillip Webb
  */
-@Component
 @ConfigurationProperties
 public class ServiceProperties {