Removed MengSky server.

Apparently changed into inso.link. :/

Author: itdelatrisu

src/itdelatrisu/opsu/downloads/servers/MengSkyServer.java

@@ -37,6 +37,8 @@
 
 /**
  * Download server: http://osu.mengsky.net/
+ * <p>
+ * <i>This server is offline as of September 2017.</i>
  */
 public class MengSkyServer extends DownloadServer {
 	/** Server name. */

src/itdelatrisu/opsu/states/DownloadsMenu.java

@@ -35,7 +35,6 @@
 import itdelatrisu.opsu.downloads.servers.BloodcatServer;
 import itdelatrisu.opsu.downloads.servers.DownloadServer;
 import itdelatrisu.opsu.downloads.servers.HexideServer;
-import itdelatrisu.opsu.downloads.servers.MengSkyServer;
 import itdelatrisu.opsu.downloads.servers.MnetworkServer;
 import itdelatrisu.opsu.downloads.servers.RippleServer;
 import itdelatrisu.opsu.options.Options;
@@ -88,7 +87,6 @@ public class DownloadsMenu extends BasicGameState {
 
 	/** Available beatmap download servers. */
 	private static final DownloadServer[] SERVERS = {
-		new MengSkyServer(),
 		new RippleServer(),
 		new MnetworkServer(),
 		new HexideServer(),