diff --git a/transport/src/main/java/io/netty/channel/socket/nio/NioSocketChannel.java b/transport/src/main/java/io/netty/channel/socket/nio/NioSocketChannel.java
index 71630e5603..3b06ce5032 100644
--- a/transport/src/main/java/io/netty/channel/socket/nio/NioSocketChannel.java
+++ b/transport/src/main/java/io/netty/channel/socket/nio/NioSocketChannel.java
@@ -28,8 +28,6 @@ import io.netty.channel.nio.AbstractNioByteChannel;
 import io.netty.channel.socket.DefaultSocketChannelConfig;
 import io.netty.channel.socket.ServerSocketChannel;
 import io.netty.channel.socket.SocketChannelConfig;
-import io.netty.util.internal.logging.InternalLogger;
-import io.netty.util.internal.logging.InternalLoggerFactory;
 
 import java.io.IOException;
 import java.net.InetSocketAddress;
@@ -45,8 +43,6 @@ public class NioSocketChannel extends AbstractNioByteChannel implements io.netty
 
     private static final ChannelMetadata METADATA = new ChannelMetadata(false);
 
-    private static final InternalLogger logger = InternalLoggerFactory.getInstance(NioSocketChannel.class);
-
     private static SocketChannel newSocket() {
         try {
             return SocketChannel.open();
@@ -79,21 +75,6 @@ public class NioSocketChannel extends AbstractNioByteChannel implements io.netty
      */
     public NioSocketChannel(Channel parent, SocketChannel socket) {
         super(parent, socket);
-        try {
-            socket.configureBlocking(false);
-        } catch (IOException e) {
-            try {
-                socket.close();
-            } catch (IOException e2) {
-                if (logger.isWarnEnabled()) {
-                    logger.warn(
-                            "Failed to close a partially initialized socket.", e2);
-                }
-            }
-
-            throw new ChannelException("Failed to enter non-blocking mode.", e);
-        }
-
         config = new DefaultSocketChannelConfig(this, socket.socket());
     }