remove dead links for anuko

- demo and homepage links very slow to respond/timeout
- ref. https://github.com/awesome-selfhosted/awesome-selfhosted/issues/2266

non-free.md

@@ -170,7 +170,7 @@
 
 ### Time Tracking
 
-- [Anuko](https://www.anuko.com/time-tracker/index.htm) - Simple time and project tracking on a self-hosted basis. ([Demo](https://timetracker.anuko.com/), [Source Code](https://github.com/anuko/timetracker)) `SSPL-1.0` `PHP`
+- [Anuko](https://github.com/anuko/timetracker) - Simple time and project tracking on a self-hosted basis. `SSPL-1.0` `PHP`
 - [Virtual TimeClock](https://www.redcort.com/timeclock) - Powerful, easy-to-use time tracking software. ([Demo](https://www.redcort.com/timeclock/free-timeclock-software-trial)) `⊘ Proprietary` `Unknown`