Don't mutate the position of Items for MC-4 Fix (#12702)

paper-server/patches/sources/net/minecraft/network/protocol/game/VecDeltaCodec.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/network/protocol/game/VecDeltaCodec.java
 +++ b/net/minecraft/network/protocol/game/VecDeltaCodec.java
-@@ -5,16 +_,16 @@
+@@ -5,7 +_,7 @@
  
  public class VecDeltaCodec {
      private static final double TRUNCATION_STEPS = 4096.0;
@@ -9,14 +9,3 @@
  
      @VisibleForTesting
      static long encode(double value) {
--        return Math.round(value * 4096.0);
-+        return Math.round(value * 4096.0); // Paper - Fix MC-4; diff on change
-     }
- 
-     @VisibleForTesting
-     static double decode(long value) {
--        return value / 4096.0;
-+        return value / 4096.0; // Paper - Fix MC-4; diff on change
-     }
- 
-     public Vec3 decode(long x, long y, long z) {