[Beta] Implement own HTTP client for online mode checks, instead of asynchttpclient

api/pom.xml

@@ -25,12 +25,6 @@
             <version>14.0.1</version>
             <scope>compile</scope>
         </dependency>
-        <dependency>
-            <groupId>com.ning</groupId>
-            <artifactId>async-http-client</artifactId>
-            <version>1.7.17</version>
-            <scope>compile</scope>
-        </dependency>
         <dependency>
             <groupId>net.md-5</groupId>
             <artifactId>bungeecord-event</artifactId>

api/src/main/java/net/md_5/bungee/api/ProxyServer.java

@@ -2,7 +2,6 @@ package net.md_5.bungee.api;
 
 import net.md_5.bungee.api.plugin.PluginManager;
 import com.google.common.base.Preconditions;
-import com.ning.http.client.AsyncHttpClient;
 import java.io.File;
 import java.net.InetSocketAddress;
 import java.util.Collection;
@@ -218,15 +217,6 @@ public abstract class ProxyServer
      */
     public abstract TaskScheduler getScheduler();
 
-    /**
-     * Gets the the web client used by this proxy to facilitate making web
-     * requests. Care should be taken to ensure that all operations are non
-     * blocking where applicable.
-     *
-     * @return the server's {@link AsyncHttpClient} instance
-     */
-    public abstract AsyncHttpClient getHttpClient();
-
     /**
      * Get the current number of connected users. The default implementation is
      * more efficient than {@link #getPlayers()} as it does not take a lock or