Improve skipping of DNS resolution when creating AuthenticationDataHt…

…tp instance (apache#15228)

- improves solution added in apache#15221
  - It's better to use the JDK provided InetSocketAddress.createUnresolved method
    to prevent unnecessary DNS resolution

pulsar-broker-common/src/main/java/org/apache/pulsar/broker/authentication/AuthenticationDataHttp.java

@@ -18,7 +18,6 @@
  */
 package org.apache.pulsar.broker.authentication;
 
-import io.netty.util.NetUtil;
 import java.net.InetSocketAddress;
 import java.net.SocketAddress;
 import javax.servlet.http.HttpServletRequest;
@@ -35,9 +34,7 @@ public AuthenticationDataHttp(HttpServletRequest request) {
             throw new IllegalArgumentException();
         }
         this.request = request;
-        this.remoteAddress =
-                new InetSocketAddress(NetUtil.createInetAddressFromIpAddressString(request.getRemoteAddr()),
-                        request.getRemotePort());
+        this.remoteAddress = InetSocketAddress.createUnresolved(request.getRemoteAddr(), request.getRemotePort());
     }
 
     /*