Removed problematic asset configuration

Signed-off-by: Jim Martens <github@2martens.de>

_config.yml

@@ -30,7 +30,6 @@ defaults:
         layout: "page"
         sidebarboxes: "author encrypted-communication"
 
-
 # Build settings
 markdown: kramdown
 include:
@@ -43,9 +42,4 @@ exclude:
   - deploy_ed25519.enc
   - LICENSE
   - vendor
-  - node_modules
+  - node_modules
-
-# asset settings
-assets:
-  cdn:
-    url: https://cdn.2martens.de