diff --git a/src/main/java/com/laosun/stackone/Stack.java b/src/main/java/com/laosun/stackone/Stack.java
deleted file mode 100644
index c936190..0000000
--- a/src/main/java/com/laosun/stackone/Stack.java
+++ /dev/null
@@ -1,63 +0,0 @@
-package com.laosun.stackone;
-
-import com.google.gson.Gson;
-import com.google.gson.JsonArray;
-import com.google.gson.JsonElement;
-import com.google.gson.JsonParser;
-
-import java.io.File;
-import java.io.FileReader;
-import java.io.IOException;
-import java.util.HashMap;
-import java.util.Map;
-
-import static com.laosun.stackone.StackOneMod.LOGGER;
-
-public class Stack {
-    public String item;
-    public short max_stack_size;
-
-    public static Map<String, Short> getStackList() {
-        Map<String, Short> map = new HashMap<>();
-        File dir = new File("config/stackone");
-        if (!dir.exists()) {
-            dir.mkdirs();
-        }
-        File file = new File(dir, "max_stack_size.json");
-        if (!file.isFile()) {
-            try {
-                if (!file.createNewFile()) {
-                    LOGGER.error("Fail to create file!");
-                }
-            } catch (IOException e) {
-                LOGGER.error("Fail to create file!");
-                e.printStackTrace();
-            }
-        }
-        char[] a1 = null;
-        try {
-            FileReader fileReader = new FileReader(file);
-            a1 = new char[(int) file.length()];
-            fileReader.read(a1);
-        } catch (IOException e) {
-            LOGGER.error("Fail to open file!");
-            e.printStackTrace();
-        }
-        Gson gson = new Gson();
-        JsonArray jsonArray;
-        try {
-            if (a1 != null) {
-                jsonArray = JsonParser.parseString(String.copyValueOf(a1)).getAsJsonArray();
-                for (JsonElement user : jsonArray) {
-                    Stack ignore = gson.fromJson(user, Stack.class);
-                    map.put(ignore.item, ignore.max_stack_size);
-                }
-            }
-
-        } catch (Exception e) {
-            LOGGER.error("Json has syntax error!");
-            e.printStackTrace();
-        }
-        return map;
-    }
-}
diff --git a/src/main/java/com/laosun/stackone/StackOneMod.java b/src/main/java/com/laosun/stackone/StackOneMod.java
index 9f847e0..7fe60bd 100644
--- a/src/main/java/com/laosun/stackone/StackOneMod.java
+++ b/src/main/java/com/laosun/stackone/StackOneMod.java
@@ -14,16 +14,12 @@
 
 @Mod(StackOneMod.MODID)
 public class StackOneMod {
-    // Define mod id in a common place for everything to reference
     public static final String MODID = "stackone";
-    // Directly reference a slf4j logger
     public static final Logger LOGGER = LogUtils.getLogger();
-    // Create a Deferred Register to hold Blocks which will all be registered under the "examplemod" namespace
 
     public StackOneMod() {
         IEventBus modEventBus = FMLJavaModLoadingContext.get().getModEventBus();
 
-        // Register the commonSetup method for modloading
         modEventBus.addListener(this::commonSetup);
     }