Revert "Zero pad chunks before saving them to the disk"

This reverts commit dab4c6e16b.

Spigot-Server-Patches/Zero-pad-chunks-before-saving-them-to-the-disk.patch

@@ -1,47 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Toon Schoenmakers <nighteyes1993@gmail.com>
-Date: Mon, 12 Oct 2020 18:59:12 +0200
-Subject: [PATCH] Zero pad chunks before saving them to the disk
-
-This makes the unused data inside region files more repeatable.
-Which will result in better compression in case the entire world directory
-is compressed (like in backups). Which will naturally result in smaller backups.
-
-diff --git a/src/main/java/net/minecraft/server/RegionFile.java b/src/main/java/net/minecraft/server/RegionFile.java
-index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
---- a/src/main/java/net/minecraft/server/RegionFile.java
-+++ b/src/main/java/net/minecraft/server/RegionFile.java
-@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable {
-         }
- 
-     }
-+    private static final ByteBuffer zero = ByteBuffer.allocateDirect(4096);
-     // Paper end
-     class ChunkBuffer extends ByteArrayOutputStream {
- 
-         private final ChunkCoordIntPair b;
- 
-         public ChunkBuffer(ChunkCoordIntPair chunkcoordintpair) {
--            super(8096);
-+            super(8192); // Paper
-             super.write(0);
-             super.write(0);
-             super.write(0);
-@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable {
-             ByteBuffer bytebuffer = ByteBuffer.wrap(this.buf, 0, this.count);
- 
-             bytebuffer.putInt(0, this.count - 5 + 1);
-+
-+            // Paper start
-+            int size = (this.count + 4095) & ~4095;
-+
-+            // increase the limit to be the next chunk of 4096
-+            bytebuffer.limit(size);
-+
-+            // now just fill the rest with zeros from our static buffer
-+            bytebuffer.put(zero);
-+            // Paper end
-+
-             RegionFile.this.a(this.b, bytebuffer);
-         }
-     }