Update rn-app-manager.md

Author: sgalsaleh

docs/release-notes/rn-app-manager.md

@@ -26,7 +26,6 @@ Support for Kubernetes: 1.29, 1.30, and 1.31
 
 ### New Features {#new-features-1-124-15}
 * Improvements for multi-node Embedded Cluster.
-* Improvements for multi-node Embedded Cluster.
 
 ## 1.124.14