fabric cleanup

platforms/region/src/main/java/com/dfsek/terra/StandalonePlugin.java

@@ -43,11 +43,6 @@ public class StandalonePlugin implements TerraPlugin {
         return worldHandle;
     }
 
-    @Override
-    public boolean isEnabled() {
-        return true;
-    }
-
     @Override
     public TerraWorld getWorld(World world) {
         return new TerraWorld(world, registry.get("DEFAULT"), this);