Remove chunk save reattempt patch

This patch does not appear to be doing anything useful, and may
hide errors.

Currently, the save logic does not run through this path either
so it did not do anything.

Additionally, properly implement support for handling
RegionFileSizeException in Moonrise.

patches/server/0206-Implement-World.getEntity-UUID-API.patch

@@ -1,26 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Brokkonaut <hannos17@gmx.de>
-Date: Tue, 3 Jul 2018 16:08:14 +0200
-Subject: [PATCH] Implement World.getEntity(UUID) API
-
-
-diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
-index a4f140fefaac7e74b6c9834e6b532f20e80b9ab9..0f8a5ad8853052c51989570df10a75bb5b3a1f68 100644
---- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
-+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
-@@ -1129,6 +1129,15 @@ public class CraftWorld extends CraftRegionAccessor implements World {
-         return list;
-     }
- 
-+    // Paper start - getEntity by UUID API
-+    @Override
-+    public Entity getEntity(UUID uuid) {
-+        Preconditions.checkArgument(uuid != null, "UUID cannot be null");
-+        net.minecraft.world.entity.Entity entity = world.getEntity(uuid);
-+        return entity == null ? null : entity.getBukkitEntity();
-+    }
-+    // Paper end
-+
-     @Override
-     public void save() {
-         org.spigotmc.AsyncCatcher.catchOp("world save"); // Spigot