Attekmi: remove Smarthub docs (#6554)

* Attekmi: remove Smarthub docs

* add redirect_from

---------

Co-authored-by: Victor <victor.banudz@smart-hub.io>

Author: SmartHubSolutions

dev-docs/bidders/attekmi.md

@@ -3,6 +3,9 @@ layout: bidder
 title: Attekmi
 description: Attekmi Bidder Adapter
 biddercode: smarthub
+redirect_from:
+  - /dev-docs/bidders/attekmi
+  - /dev-docs/bidders/smarthub
 usp_supported: true
 media_types: banner, video, native
 tcfeu_supported: false