Fix bug: Swissborg repeats twice

Author: anatoliykmetyuk

_data/scala-days-sponsors.yml

@@ -122,11 +122,6 @@ sponsors:
     logo: /resources/img/scala-days-sponsors/swissborg.svg
     url: https://swissborg.com/
 
-  - title: Swissborg
-    type: Bronze
-    logo: /resources/img/scala-days-sponsors/swissborg.svg
-    url: https://swissborg.com/
-
   - title: Deltek
     type: Bronze
     logo: /resources/img/scala-days-sponsors/deltek.png