chore(extension): remove unused dep

Author: cabljac

firestore-stripe-payments/functions/package-lock.json

@@ -29,7 +29,6 @@
   },
   "devDependencies": {
     "@faker-js/faker": "^6.0.0",
-    "@stripe/stripe-js": "^2.2.0",
     "@types/chai": "^4.1.6",
     "@types/express": "^4.17.13",
     "@types/jest": "^29.5.14",