Remove Player#sendChunkChange

Method is specified according to an obsolete internal format and has not been implemented for nearly 10 years.

By: md_5 <git@md-5.net>

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java

@@ -638,40 +638,6 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         getHandle().connection.send(new PacketPlayOutEntityEquipment(entity.getEntityId(), equipment));
     }
 
-    @Override
-    public boolean sendChunkChange(Location loc, int sx, int sy, int sz, byte[] data) {
-        if (getHandle().connection == null) return false;
-
-        /*
-        int x = loc.getBlockX();
-        int y = loc.getBlockY();
-        int z = loc.getBlockZ();
-
-        int cx = x >> 4;
-        int cz = z >> 4;
-
-        if (sx <= 0 || sy <= 0 || sz <= 0) {
-            return false;
-        }
-
-        if ((x + sx - 1) >> 4 != cx || (z + sz - 1) >> 4 != cz || y < 0 || y + sy > 128) {
-            return false;
-        }
-
-        if (data.length != (sx * sy * sz * 5) / 2) {
-            return false;
-        }
-
-        Packet51MapChunk packet = new Packet51MapChunk(x, y, z, sx, sy, sz, data);
-
-        getHandle().playerConnection.sendPacket(packet);
-
-        return true;
-        */
-
-        throw new NotImplementedException("Chunk changes do not yet work"); // TODO: Chunk changes.
-    }
-
     @Override
     public void sendMap(MapView map) {
         if (getHandle().connection == null) return;