Remove broken link (#69)

Author: mkljczk

content/posts/2018-12-30_Why-does-decentralization-matter/index.md

@@ -40,5 +40,4 @@ Any alternative social network that rejects decentralization will ultimately str
 
 **Digging deeper:**
 
-- [How Mastodon uses decentralization](https://docs.joinmastodon.org/usage/decentralization/)
-- [The nature of the self in the digital age](https://2018.ar.al/notes/the-nature-of-the-self-in-the-digital-age/)
+- [The nature of the self in the digital age](https://2018.ar.al/notes/the-nature-of-the-self-in-the-digital-age/)