remove Croodle (unmaintained since 2021)

- ref. https://github.com/awesome-selfhosted/awesome-selfhosted/issues/3558
- `WARNING:awesome_lint.py: Croodle: last updated -731 days, 1:27:15.139038 ago, older than 365 days`

README.md

@@ -1581,7 +1581,6 @@ _Related: [Booking and Scheduling](#booking-and-scheduling)_
 - [Christmas Community](https://github.com/Wingysam/Christmas-Community) - Create a simple place for your entire family to use to find gifts that people want, and to avoid double-gifting. `AGPL-3.0` `Docker/Nodejs`
 - [Claper](https://claper.co/) - The ultimate tool to interact with your audience. An open-source alternative to Slido, AhaSlides and Mentimeter. ([Source Code](https://github.com/ClaperCo/Claper)) `GPL-3.0` `Elixir/Docker`
 - [ClearFlask](https://clearflask.com) - Community-feedback tool for managing incoming feedback and prioritizing a public roadmap. Alternative to Canny, UserVoice, Upvoty. ([Demo](https://product.clearflask.com), [Source Code](https://github.com/clearflask/clearflask)) `AGPL-3.0` `Docker`
-- [Croodle](https://github.com/jelhan/croodle) - Croodle is an end-to-end encrypted web application to schedule a date or to do a poll on any topic. `MIT` `Javascript`
 - [docassemble](https://docassemble.org/) - A free, open-source expert system for guided interviews and document assembly, based on Python, YAML, and Markdown. ([Demo](https://demo.docassemble.org/run/legal), [Source Code](https://github.com/jhpyle/docassemble)) `MIT` `Docker`
 - [dudle](http://primelife.ercim.eu/results/opensource/63-dudle) - Online scheduling application. ([Demo](https://dudle.inf.tu-dresden.de/), [Source Code](https://github.com/kellerben/dudle)) `AGPL-3.0` `Ruby`
 - [Feedka](https://github.com/drabkirn/feedka) `⚠` - Open-source web application that can serve as a platform to get authentic, kindful, and constructive feedback from your friends, family, and co-workers. `AGPL-3.0` `Ruby`