remove debug logging

common/src/main/java/com/dfsek/terra/registry/StructureRegistry.java

@@ -3,9 +3,4 @@ package com.dfsek.terra.registry;
 import com.dfsek.terra.generation.items.TerraStructure;
 
 public class StructureRegistry extends TerraRegistry<TerraStructure> {
-    @Override
-    public boolean add(String name, TerraStructure value) {
-        System.out.println("added structure " + name + " to registry");
-        return super.add(name, value);
-    }
 }