fix build

Author: cpcramer

playground/nextjs-app-router/onchainkit/package.json

@@ -36,7 +36,6 @@
     "react-dom": "^18"
   },
   "dependencies": {
-    "@rainbow-me/rainbowkit": "^2.1.3",
     "@tanstack/react-query": "^5",
     "clsx": "^2.1.1",
     "graphql": "^14 || ^15 || ^16",