Anti Xray cleanup

Undo the accidental renaming of a method in e45e15c
Aikar wanted to rename DataPalette#getDataBits(T object) to getOrCreateIdFor
in e45e15c but he also accidentally renamed
ChunkPacketInfo#getDataBitsIndex(int chunkSectionIndex) to
getOrCreateIdForIndex.

Remove chunk-edge-mode and chunk loading entirely from Anti-Xray
The chunk-edge-mode is broken since several versions.
Loading chunk neighbors for chunk edge obfuscation isn't needed anymore.
Unlike in previous versions, these are under normal circumstances already loaded
at the time we need them (plugins for example can bypass this).

Use the modified methods and constructors everywhere
Anti-Xray provides support for the default nms methods and constructors,
which where modified by Anti-Xray to avoid breaking stuff (plugins)
which somehow uses these methods.
However, the modified versions of those methods and constructors should be used
where possible.

Spigot-Server-Patches/Optimise-Chunk-getFluid.patch

@@ -8,7 +8,7 @@ faster on its own, however removing the try catch makes it
 easier to inline due to code size
 
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index 65882f4632..696634ebf5 100644
+index bb95fe20e8a..33456b0bb42 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
 @@ -0,0 +0,0 @@ public class Chunk implements IChunkAccess {
@@ -48,7 +48,7 @@ index 65882f4632..696634ebf5 100644
  
      // CraftBukkit start
 diff --git a/src/main/java/net/minecraft/server/ChunkSection.java b/src/main/java/net/minecraft/server/ChunkSection.java
-index 3eaf893cdf..cda718bba0 100644
+index 64b625e988f..b7b06e082e5 100644
 --- a/src/main/java/net/minecraft/server/ChunkSection.java
 +++ b/src/main/java/net/minecraft/server/ChunkSection.java
 @@ -0,0 +0,0 @@ public class ChunkSection {