diff --git a/src/core/size.js b/src/core/size.js
deleted file mode 100644
index aaf863008..000000000
--- a/src/core/size.js
+++ /dev/null
@@ -1,22 +0,0 @@
-/**
- * @author windy
- * @version 2.0
- * Created by windy on 2021/6/30
- */
-_.extend(BI, {
-    switchSystemSize: function(opt) {
-        BI.config('bi.constant.system.size', function (ob) {
-            return BI.extend(ob, opt);
-        });
-    },
-});
-
-BI.constant('bi.constant.system.size', {
-    TOOL_BAR_HEIGHT: 24,
-    LIST_ITEM_HEIGHT: 24,
-    TRIGGER_HEIGHT: 24,
-});
-
-BI.prepares.push(function () {
-    BI.SIZE_CONSANTS = BI.Constants.getConstant('bi.constant.widget.size');
-});