[fix]package import error

rpc-framework-simple/src/main/java/github/javaguide/remoting/transport/netty/server/NettyServer.java

@@ -7,6 +7,8 @@ import github.javaguide.provider.ServiceProvider;
 import github.javaguide.provider.ServiceProviderImpl;
 import github.javaguide.remoting.transport.netty.codec.RpcMessageDecoder;
 import github.javaguide.remoting.transport.netty.codec.RpcMessageEncoder;
+import github.javaguide.utils.RuntimeUtil;
+import github.javaguide.utils.concurrent.threadpool.ThreadPoolFactoryUtils;
 import io.netty.bootstrap.ServerBootstrap;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelInitializer;
@@ -42,10 +44,6 @@ public class NettyServer {
 
     private final ServiceProvider serviceProvider = SingletonFactory.getInstance(ServiceProviderImpl.class);
 
-    public void registerService(Object service) {
-        serviceProvider.publishService(service);
-    }
-
     public void registerService(Object service, RpcServiceProperties rpcServiceProperties) {
         serviceProvider.publishService(service, rpcServiceProperties);
     }