Remove the unused filed.

api/src/main/java/com/alibaba/nacos/api/remote/request/ConnectionSetupRequest.java

@@ -35,19 +35,6 @@ public class ConnectionSetupRequest extends InternalRequest {
     
     private byte[] abilityTable;
     
-    /**.
-     * server will resolve {@link ConnectionSetupRequest#abilityTable} to server abilities, or to client abilities
-     */
-    private boolean isServer;
-    
-    public boolean isServer() {
-        return isServer;
-    }
-    
-    public void setServer(boolean server) {
-        isServer = server;
-    }
-    
     public ConnectionSetupRequest() {
     }
     

common/src/main/java/com/alibaba/nacos/common/remote/client/grpc/GrpcClient.java

@@ -382,7 +382,6 @@ public abstract class GrpcClient extends RpcClient {
                 byte[] bitTable = AbilityTableUtils.getAbilityBiTableBy(AbilityKey.values(),
                         NacosAbilityManagerHolder.getInstance().getCurrentRunningAbility());
                 conSetupRequest.setAbilityTable(bitTable);
-                conSetupRequest.setServer(isServer());
                 conSetupRequest.setTenant(super.getTenant());
                 grpcConn.sendRequest(conSetupRequest);
                 // wait for response
@@ -419,14 +418,6 @@ public abstract class GrpcClient extends RpcClient {
         }
     }
     
-    /**
-     * Return whether server environment
-     * The same offset may refer to different functions in the client capability table and the server capability table.
-     *
-     * @return whether server environment
-     */
-    protected abstract boolean isServer();
-    
 }
 
 

common/src/main/java/com/alibaba/nacos/common/remote/client/grpc/GrpcClusterClient.java

@@ -35,11 +35,6 @@ public class GrpcClusterClient extends GrpcClient {
         super(name);
     }
     
-    @Override
-    protected boolean isServer() {
-        return true;
-    }
-    
     @Override
     public int rpcPortOffset() {
         return Integer.parseInt(System.getProperty(NACOS_SERVER_GRPC_PORT_OFFSET_KEY,

common/src/main/java/com/alibaba/nacos/common/remote/client/grpc/GrpcSdkClient.java

@@ -35,11 +35,6 @@ public class GrpcSdkClient extends GrpcClient {
         super(name);
     }
     
-    @Override
-    protected boolean isServer() {
-        return false;
-    }
-    
     @Override
     public int rpcPortOffset() {
         return Integer.parseInt(System.getProperty(NACOS_SERVER_GRPC_PORT_OFFSET_KEY,

common/src/test/java/com/alibaba/nacos/common/remote/client/grpc/GrpcClientTest.java

@@ -48,11 +48,6 @@ public class GrpcClientTest {
     public void setUp() throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
         grpcClient = spy(new GrpcClient("testClient") {
     
-            @Override
-            protected boolean isServer() {
-                return false;
-            }
-    
             @Override
             public int rpcPortOffset() {
                 return 1000;