Disable Spigot's chunk unload queue throttling

Seems to be causing more problems than it's solving
Closes GH-597

Spigot-Server-Patches/0211-Disable-Spigot-chunk-unload-rate-throttling.patch

@@ -0,0 +1,39 @@
+From 12cbc9ca5cc3aa13d8daeea8beecf3f8ad47eac7 Mon Sep 17 00:00:00 2001
+From: Zach Brown <zach.brown@destroystokyo.com>
+Date: Tue, 7 Feb 2017 16:55:35 -0600
+Subject: [PATCH] Disable Spigot chunk unload rate throttling
+
+
+diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
+index 7006466b5..695c9bd2a 100644
+--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
++++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
+@@ -324,7 +324,7 @@ public class ChunkProviderServer implements IChunkProvider {
+             if (!this.unloadQueue.isEmpty()) {
+                 // Spigot start
+                 org.spigotmc.SlackActivityAccountant activityAccountant = this.world.getMinecraftServer().slackActivityAccountant;
+-                activityAccountant.startActivity(0.5);
++                //activityAccountant.startActivity(0.5); // Paper
+                 int targetSize = (int) (this.unloadQueue.size() * UNLOAD_QUEUE_RESIZE_FACTOR);
+                 // Spigot end
+ 
+@@ -344,14 +344,14 @@ public class ChunkProviderServer implements IChunkProvider {
+                         // CraftBukkit end
+ 
+                         // Spigot start
+-                        if (this.unloadQueue.size() <= targetSize && activityAccountant.activityTimeIsExhausted()) {
++                        if (false && this.unloadQueue.size() <= targetSize && activityAccountant.activityTimeIsExhausted()) { // Paper - Disable for the time being
+                             break;
+                         }
+                         // Spigot end
+                     }
+                 }
+ 
+-                activityAccountant.endActivity(); // Spigot
++                //activityAccountant.endActivity(); // Spigot // Paper
+             }
+             // Paper start - delayed chunk unloads
+             long now = System.currentTimeMillis();
+-- 
+2.11.1.windows.1
+