update example configuration

spring-cloud-alibaba-examples/ans-example/ans-consumer-feign-example/src/main/resources/application.properties

@@ -1,4 +1,4 @@
 server.port=18083
 # The following configuration can be omitted.
-spring.cloud.ans.server.list=127.0.0.1
-spring.cloud.ans.server.port=8080
+spring.cloud.alicloud.ans.server.list=127.0.0.1
+spring.cloud.alicloud.ans.server.port=8080

spring-cloud-alibaba-examples/ans-example/ans-consumer-ribbon-example/src/main/resources/application.properties

@@ -1,4 +1,4 @@
 server.port=18082
 # The following configuration can be omitted.
-spring.cloud.ans.server.list=127.0.0.1
-spring.cloud.ans.server.port=8080
+spring.cloud.alicloud.ans.server.list=127.0.0.1
+spring.cloud.alicloud.ans.server.port=8080

spring-cloud-alibaba-examples/ans-example/ans-provider-example/src/main/resources/application.properties

@@ -1,2 +1,4 @@
 spring.application.name=ans-provider
-server.port=18081
+server.port=18081
+spring.cloud.alicloud.ans.server.list=127.0.0.1
+spring.cloud.alicloud.ans.server.port=8080

spring-cloud-alicloud-ans/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -1,28 +0,0 @@
-{
-  "properties": [
-    {
-      "name": "spring.cloud.ans.server.list",
-      "type": "java.lang.String",
-      "defaultValue": "127.0.0.1",
-      "description": "ANS server list."
-    },
-    {
-      "name": "spring.cloud.ans.server.port",
-      "type": "java.lang.Integer",
-      "defaultValue": "80",
-      "description": "ANS server port."
-    },
-    {
-      "name": "spring.cloud.ans.client.domains",
-      "type": "java.lang.String",
-      "defaultValue": "",
-      "description": "Service name list, default value is ${spring.application.name}."
-    },
-    {
-      "name": "spring.cloud.ans.client.env",
-      "type": "java.lang.String",
-      "defaultValue": "DEFAULT",
-      "description": "The env for ans, default value is DEFAULT."
-    }
-  ]
-}