Update README.md

Author: AndrewHazelden

README.md

@@ -70,14 +70,6 @@ Kartaverse publishes an [open-source database for XR stage displays](https://kar
 
 The [Kartaverse repositories](https://github.com/Kartaverse) are available on GitHub.
 
-## Facebook Group
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-Check out the [KartaVR Facebook Group](https://www.facebook.com/groups/kartavr) if you want to read the latest Kartaverse news, or talk directly with other  users.
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-## Reddit Group
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-Check out the [r/Kartaverse Reddit](https://www.reddit.com/r/Kartaverse/). This Reddit community is where you can ask technical questions about immersive media post-production, and get answers to all things KartaVR, Vonk Ultra, and XR related.
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 ## Medium Blog
 
 The [Kartaverse Blog](https://medium.com/@andrewhazelden) is hosted on Medium.