Reenable throttle since we only support 1.7+

proxy/src/main/java/net/md_5/bungee/netty/PipelineUtils.java

@@ -36,9 +36,8 @@ public class PipelineUtils
         {
             if ( BungeeCord.getInstance().getConnectionThrottle().throttle( ( (InetSocketAddress) ch.remoteAddress() ).getAddress() ) )
             {
-                // TODO: Better throttle - we can't throttle this way if we want to maintain 1.7 compat!
-                // ch.close();
-                // return;
+                ch.close();
+                return;
             }
 
             BASE.initChannel( ch );