some compatibility modifications about Hoxton

spring-cloud-alibaba-examples/sentinel-example/sentinel-dubbo-example/sentinel-dubbo-consumer-example/src/main/java/com/alibaba/cloud/examples/FooServiceConsumer.java

@@ -7,7 +7,7 @@ import org.apache.dubbo.config.annotation.Reference;
  */
 public class FooServiceConsumer {
 
-	@Reference(version = "${foo.service.version}", application = "${dubbo.application.id}", url = "dubbo://localhost:12345", timeout = 30000)
+	@Reference(version = "${foo.service.version}", application = "${dubbo.application.id}", url = "dubbo://localhost:12345?version=1.0.0", timeout = 30000)
 	private FooService fooService;
 
 	public String hello(String name) {

spring-cloud-alibaba-sentinel/src/main/java/com/alibaba/cloud/sentinel/custom/SentinelBeanPostProcessor.java

@@ -31,7 +31,6 @@ import org.springframework.beans.factory.support.RootBeanDefinition;
 import org.springframework.context.ApplicationContext;
 import org.springframework.core.type.MethodMetadata;
 import org.springframework.core.type.StandardMethodMetadata;
-import org.springframework.core.type.classreading.MethodMetadataReadingVisitor;
 import org.springframework.http.HttpRequest;
 import org.springframework.http.client.ClientHttpRequestExecution;
 import org.springframework.http.client.ClientHttpResponse;
@@ -171,12 +170,6 @@ public class SentinelBeanPostProcessor implements MergedBeanDefinitionPostProces
 				&& checkMethodMetadataReadingVisitor(beanDefinition);
 	}
 
-	// private boolean checkStandardMethodMetadata(RootBeanDefinition beanDefinition) {
-	// return beanDefinition.getSource() instanceof StandardMethodMetadata
-	// && ((StandardMethodMetadata) beanDefinition.getSource())
-	// .isAnnotated(SentinelRestTemplate.class.getName());
-	// }
-
 	private boolean checkMethodMetadataReadingVisitor(RootBeanDefinition beanDefinition) {
 		return beanDefinition.getSource() instanceof MethodMetadata
 				&& ((MethodMetadata) beanDefinition.getSource())