fix: disable plugin-legacy build

Author: underfin

packages/plugin-legacy/package.json

@@ -23,7 +23,6 @@
   },
   "scripts": {
     "dev": "unbuild --stub",
-    "build": "unbuild && pnpm run patch-cjs",
     "patch-cjs": "tsx ../../scripts/patchCJS.ts",
     "prepublishOnly": "npm run build"
   },