Revert "Livewrapped support for native and video (prebid#2323)" (prebid#2324)

This reverts commit 1bcb343.

Author: MartianTribe

dev-docs/bidders/livewrapped.md

@@ -4,7 +4,7 @@ title: Livewrapped
 description: Prebid Livewrapped Bidder Adaptor
 biddercode: livewrapped
 pbjs: true
-media_types: banner, video, native
+media_types: banner
 gdpr_supported: true
 userIds: id5Id, pubCommonId
 tcf2_supported: true