More improvements to activation range, improve turtles

improved the water code so that immunity wont trigger if the entity
has the water pathfinder system active, so this improves support
for all entities that know how to behave in water.

Merged 2 EAR patches together, and removed an MCUtil method that
doesnt have a purpose anymore

Spigot-Server-Patches/Anti-Xray.patch

@@ -1049,7 +1049,7 @@ index 0000000000..37093419cf
 +    }
 +}
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index 56116ae170..6f8e6db820 100644
+index ae7e00d81e..a3c53c1d84 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 {
@@ -1418,7 +1418,7 @@ index 22a262bb60..40ec398eef 100644
                  if (flag) {
                      packetdataserializer.writeBytes(chunksection.getSkyLightArray().asBytes());
 diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
-index 84896d6f6b..2a889dc20a 100644
+index a0fcac3296..2c7c8adf7c 100644
 --- a/src/main/java/net/minecraft/server/PlayerChunk.java
 +++ b/src/main/java/net/minecraft/server/PlayerChunk.java
 @@ -0,0 +0,0 @@ public class PlayerChunk {