Legacy materials are not iterated, so don't have to check for that

src/main/java/de/diddiz/LogBlock/MaterialConverter.java

@@ -25,11 +25,9 @@ public class MaterialConverter {
 
     static {
         for (Material m : Material.values()) {
-            if (!m.name().startsWith("LEGACY_") && m.getKey() != null) {
             materialKeyToMaterial.put(m.getKey().toString(), m);
         }
     }
-    }
 
     public static int getOrAddMaterialId(NamespacedKey nameSpaceKey) {
         return getOrAddMaterialId(nameSpaceKey.toString());