Merge pull request #84 from lepdou/2020/optimize_common_pom

optimzie pom dependency

spring-cloud-tencent-commons/pom.xml

@@ -44,7 +44,7 @@
 
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
-			<artifactId>spring-cloud-commons</artifactId>
+			<artifactId>spring-cloud-starter</artifactId>
 		</dependency>
 
 		<dependency>

spring-cloud-tencent-examples/polaris-ratelimit-example/ratelimit-callee-service/pom.xml

@@ -18,16 +18,6 @@
 			<artifactId>spring-boot-starter-web</artifactId>
 		</dependency>
 
-		<dependency>
-			<groupId>org.springframework.cloud</groupId>
-			<artifactId>spring-cloud-loadbalancer</artifactId>
-		</dependency>
-
-		<dependency>
-			<groupId>com.tencent.cloud</groupId>
-			<artifactId>spring-cloud-starter-tencent-polaris-discovery</artifactId>
-		</dependency>
-
 		<dependency>
 			<groupId>com.tencent.cloud</groupId>
 			<artifactId>spring-cloud-starter-tencent-polaris-ratelimit</artifactId>