Docs: Remove old documentation

Author: BornToBeRoot

Website/docs/introduction.mdx

@@ -6,12 +6,6 @@ import styles from "./styles.module.css";
 
 # Introduction
 
-:::note
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-Documentation is currently migrated... You can find the old documentation [here](https://github.com/BornToBeRoot/NETworkManager/tree/main/docs/Documentation).
-
-:::
-
 ## What is NETworkManager?
 
 **NETworkManager is a powerful open source tool for managing networks and troubleshooting network problems!**