Revert "Add the option to tiemout per url and not per ip"

This reverts commit 6606f03.

Author: tomas-sexenian

java/src/main/java/com/genexus/internet/HttpClientJavaLib.java

@@ -22,7 +22,6 @@
 import org.apache.http.conn.ssl.NoopHostnameVerifier;
 import org.apache.http.entity.ContentType;
 import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
-import org.apache.http.impl.conn.SystemDefaultDnsResolver;
 import org.apache.http.protocol.HttpContext;
 import org.apache.http.auth.AuthSchemeProvider;
 import org.apache.http.auth.AuthScope;
@@ -69,19 +68,6 @@ public HttpClientJavaLib() {
 		getPoolInstance();
 		ConnectionKeepAliveStrategy myStrategy = generateKeepAliveStrategy();
 		httpClientBuilder = HttpClients.custom().setConnectionManager(connManager).setConnectionManagerShared(true).setKeepAliveStrategy(myStrategy);
-		String gxDns = System.getenv("GX_USE_FIRST_IP_DNS");
-		if (gxDns == null || gxDns.trim().isEmpty()) {
-			gxDns = System.getProperty("GX_USE_FIRST_IP_DNS");
-		}
-		if (gxDns != null && gxDns.trim().equalsIgnoreCase("true")) {
-			httpClientBuilder.setDnsResolver(new SystemDefaultDnsResolver() {
-				@Override
-				public InetAddress[] resolve(String host) throws UnknownHostException {
-					InetAddress[] all = super.resolve(host);
-					return new InetAddress[] { all[0] };
-				}
-			});
-		}
 		cookies = new BasicCookieStore();		
 		streamsToClose = new Vector<>();
 	}