remove unwanted devDep

package.json

@@ -26,7 +26,7 @@
   ],
   "homepage": "https://adminlte.io",
   "style": "dist/css/adminlte.css",
-  "sass": "scss/adminlte.scss",
+  "sass": "src/scss/adminlte.scss",
   "repository": {
     "type": "git",
     "url": "git://github.com/ColorlibHQ/AdminLTE.git"
@@ -45,9 +45,6 @@
     "autoprefixer": "^10.2.5",
     "browser-sync": "^2.26.14",
     "bundlewatch": "^0.3.2",
-    "clean-css-cli": "^5.3.0",
-    "concurrently": "^6.1.0",
-    "cross-env": "^7.0.3",
     "del": "^6.0.0",
     "esbuild": "^0.11.23",
     "eslint": "^7.26.0",
@@ -65,10 +62,8 @@
     "gulp-sourcemaps": "^3.0.0",
     "gulp-wait": "0.0.2",
     "lockfile-lint": "^4.6.2",
-    "nodemon": "^2.0.7",
     "npm-run-all": "^4.1.5",
     "postcss": "^8.2.15",
-    "postcss-cli": "^8.3.1",
     "rtlcss": "^3.1.2",
     "sass": "^1.32.13",
     "stylelint": "^13.13.1",