Revert "Remove metrics now to avoid issues later on. TODO: Make own metrics."

This reverts commit 70d2a558bc.

By: md_5 <md_5@live.com.au>

CraftBukkit-Patches/0054-Disallow-Interaction-With-Self.patch

@@ -1,27 +0,0 @@
-From 4e0a2bb87e18f9d8850701ab6f7bdd9acc6ed8ef Mon Sep 17 00:00:00 2001
-From: md_5 <md_5@live.com.au>
-Date: Fri, 28 Jun 2013 19:52:54 +1000
-Subject: [PATCH] Disallow Interaction With Self
-
-
-diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
-index 3c03d5a..10d853b 100644
---- a/src/main/java/net/minecraft/server/PlayerConnection.java
-+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
-@@ -1087,6 +1087,13 @@ public class PlayerConnection extends Connection {
- 
-         WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension);
-         Entity entity = worldserver.getEntity(packet7useentity.target);
-+        // Spigot Start
-+        if ( entity == player )
-+        {
-+            disconnect( "Cannot interact with self!" );
-+            return;
-+        }
-+        // Spigot End
- 
-         this.player.u();
-         if (entity != null) {
--- 
-1.8.1.2
-