remove commented out code

Author: TarLaboratories

src/main/java/com/gregtechceu/gtceu/syncsystem/data_transformers/collections/MapTransformer.java

@@ -40,7 +40,6 @@ public Tag serializeNBT(Map<K, V> value, ISyncManaged holder) {
     @Override
     public Map<K, V> deserializeNBT(Tag tag, ISyncManaged holder, Map<K, V> current) {
         if (!(tag instanceof ListTag listTag)) return current;
-        // current.clear();
         if (current != null) current.clear();
         else current = new HashMap<>();
         for (Tag entryTag : listTag) {