Revert "add formatter"

This reverts commit ce30989adc.

package-lock.json

@@ -130,7 +130,6 @@
         "grunt-contrib-watch": "^1.1.0",
         "grunt-eslint": "^24.3.0",
         "grunt-exec": "~3.0.0",
-        "grunt-prettier": "^2.2.0",
         "grunt-webpack": "^6.0.0",
         "grunt-zip": "^1.0.0",
         "html-webpack-plugin": "^5.6.0",
@@ -8118,28 +8117,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/grunt-prettier": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/grunt-prettier/-/grunt-prettier-2.2.0.tgz",
-      "integrity": "sha512-kl6+1sYEM7HezxZS0DEFYYpD7JtwsToD8ZK2kDpAd3SvHINbz2iwsghpPsmdGihUJ2FVo8XBIzACmNxBBCytqQ==",
-      "dev": true,
-      "dependencies": {
-        "prettier": "^2.0.5",
-        "progress": "^2.0.0"
-      },
-      "engines": {
-        "node": ">= 10.0.0"
-      }
-    },
-    "node_modules/grunt-prettier/node_modules/progress": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.3.tgz",
-      "integrity": "sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==",
-      "dev": true,
-      "engines": {
-        "node": ">=0.4.0"
-      }
-    },
     "node_modules/grunt-retro": {
       "version": "0.6.4",
       "dev": true,
@@ -12197,21 +12174,6 @@
         "node": ">= 0.8.0"
       }
     },
-    "node_modules/prettier": {
-      "version": "2.8.8",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.8.tgz",
-      "integrity": "sha512-tdN8qQGvNjw4CHbY+XXk0JgCXn9QiF21a55rBe5LJAU+kDyC4WQn4+awm2Xfk2lQMk5fKup9XgzTZtGkjBdP9Q==",
-      "dev": true,
-      "bin": {
-        "prettier": "bin-prettier.js"
-      },
-      "engines": {
-        "node": ">=10.13.0"
-      },
-      "funding": {
-        "url": "https://github.com/prettier/prettier?sponsor=1"
-      }
-    },
     "node_modules/pretty-error": {
       "version": "4.0.0",
       "dev": true,