remove unused require

web/source/package.json

@@ -18,7 +18,6 @@
     "browserlist": "^1.0.1",
     "create-error": "^0.3.1",
     "css-extract": "^2.0.0",
-    "default-value": "^1.0.0",
     "dotty": "^0.1.2",
     "eslint-plugin-react": "^7.24.0",
     "express": "^4.18.1",

web/source/settings-panel/redux/reducers/admin.js

@@ -19,7 +19,6 @@
 "use strict";
 
 const { createSlice } = require("@reduxjs/toolkit");
-const defaultValue = require("default-value");
 
 function sortBlocks(blocks) {
 	return blocks.sort((a, b) => { // alphabetical sort