docs(readme): remove unmaintained fedora copr package

Author: JakeStanger

README.md

@@ -181,15 +181,6 @@ A flake is included with the repo which can be used with Home Manager.
 CI builds are automatically cached by Garnix.
 You can use their binary cache by following the steps [here](https://garnix.io/docs/caching).
 
-### Fedora
-
-[fedora package](https://copr.fedorainfracloud.org/coprs/victorvintorez/tilingtools/packages/)
-
-``` sh
-dnf copr enable victorvintorez/tilingtools
-dnf install ironbar
-```
-
 ### Void Linux
 
 [void package](https://github.com/void-linux/void-packages/tree/master/srcpkgs/ironbar)