Merge branch 'docs/readme_update' into '5.3'

docs: Removes cluster plugin link from 5.3 branch as it is not necessary there.

See merge request vr-vis/VR-Group/unreal-development/plugins/rwth-vr-toolkit!89

README.md

@@ -4,9 +4,6 @@ The contents of this plugin are constantly extended and improved to reflect chan
 
 [Check out the repository's wiki page for installation, usage and documentation](https://git-ce.rwth-aachen.de/vr-vis/VR-Group/unreal-development/plugins/rwth-vr-toolkit/-/wikis/home).
 
-## RWTH VR Cluster Plugin
-
-To add support for nDisplay driven clusters such as the aixCAVE, check out the [RWTH VR Cluster Plugin](https://git-ce.rwth-aachen.de/vr-vis/VR-Group/unreal-development/plugins/rwth-vr-cluster-plugin).
 
 ## Citation