Remove Stathat from monitoring services

README.md

@@ -779,7 +779,6 @@ This list results from Pull Requests, reviews, ideas, and work done by 1600+ peo
   * [Simple Observability](https://simpleobservability.com) - Powerful server monitoring in a unified platform for metrics and logs, with no setup complexity. Free for one server.
   * [sitesure.net](https://sitesure.net) - Website and cron monitoring - 2 monitors free
   * [skylight.io](https://www.skylight.io/) - Free for first 100,000 requests (Rails only)
-  * [stathat.com](https://www.stathat.com/) - Get started with ten stats for free, no expiration
   * [statuscake.com](https://www.statuscake.com/) - Website monitoring, unlimited tests free with limitations
   * [statusgator.com](https://statusgator.com/) - Status page monitoring, 3 monitors free
   * [supaguard.app](https://supaguard.app/) - Synthetic monitoring from 20+ global regions. The free tier includes 1,000 browser checks/mo with AI-driven self-healing and automated test generation.