Remove patch #15 - optimized chunk unload

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

CraftBukkit-Patches/0043-Prevent-Shutdown-Hang.patch

@@ -0,0 +1,30 @@
+From 0cad9daa478ea20a8811fda0aa6b1be088b2521b Mon Sep 17 00:00:00 2001
+From: md_5 <md_5@live.com.au>
+Date: Tue, 11 Jun 2013 11:54:32 +1000
+Subject: [PATCH] Prevent Shutdown Hang
+
+Prevents server hanging if players disconnect during the shutdown sequence.
+
+diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
+index 0e5bf6c..1276ec4 100644
+--- a/src/main/java/net/minecraft/server/PlayerList.java
++++ b/src/main/java/net/minecraft/server/PlayerList.java
+@@ -1061,7 +1061,14 @@ public abstract class PlayerList {
+ 
+     public void r() {
+         while (!this.players.isEmpty()) {
+-            ((EntityPlayer) this.players.get(0)).playerConnection.disconnect(this.server.server.getShutdownMessage()); // CraftBukkit - add custom shutdown message
++            // Spigot start
++            EntityPlayer p = (EntityPlayer) this.players.get( 0 );
++            p.playerConnection.disconnect( this.server.server.getShutdownMessage() );
++            if ( ( !this.players.isEmpty() ) && ( this.players.get( 0 ) == p ) )
++            {
++                this.players.remove( 0 ); // Prevent shutdown hang if already disconnected
++            }
++            // Spigot end
+         }
+     }
+ 
+-- 
+1.8.1.2
+