🔥remove the script useless.

Author: SoonIter

package.json

@@ -6,7 +6,6 @@
   "scripts": {
     "dev": "vite",
     "build": "vite build",
-    "postbuild": "node ./scripts/buildCss.cjs",
     "preview": "vite preview",
     "check": "svelte-check --tsconfig ./tsconfig.json"
   },