remove methods only used for cursed Bukkit stuff from common World interface.

platforms/region/src/main/java/com/dfsek/terra/platform/DirectWorld.java

@@ -19,7 +19,6 @@ import java.io.IOException;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
-import java.util.UUID;
 
 public class DirectWorld implements World {
     private final long seed;
@@ -51,16 +50,6 @@ public class DirectWorld implements World {
         return null;
     }
 
-    @Override
-    public UUID getUID() {
-        return null;
-    }
-
-    @Override
-    public boolean isChunkGenerated(int x, int z) {
-        return false;
-    }
-
     @Override
     public Chunk getChunkAt(int x, int z) {
         MCAFile file = compute(x, z);
@@ -72,11 +61,6 @@ public class DirectWorld implements World {
         return new DirectChunkData(chunk, this, x, z);
     }
 
-    @Override
-    public File getWorldFolder() {
-        return null;
-    }
-
     @Override
     public Block getBlockAt(int x, int y, int z) {
         return new DirectBlock(this, new Vector3(x, y, z));