Delete a LinkedIn creative (ad)

Permanently removes a creative (an ad in Campaign Manager) from a campaign (ad set). This cannot be undone, and LinkedIn stops reporting its past performance against the campaign, so the campaign's historical totals change. A creative still in draft is deleted outright; one that has been out of draft is marked PENDING_DELETION, which stops it serving at once and has LinkedIn remove it afterwards — so it can still appear in linkedin_list_creatives with that status for a while. The result says which happened. Use when: the user has explicitly asked to delete — a creative published with the wrong asset, or something that must not exist for a legal or brand reason. Requires confirm_delete: true. Do not use it to stop an ad. linkedin_pause_creative stops delivery instantly, is reversible, and keeps the history — that is what "turn this off" means, every time. Do not delete a creative that has spent money without telling the user that the campaign's reported history will change afterwards. Show them linkedin_get_creative_performance first so the numbers are recorded somewhere before they vanish. Never call this because a creative is underperforming. Losing a test result is worse than the £30 the ad cost. Returns confirmation and what was removed. Show the user exactly which creative, on which campaign, and get an explicit yes before calling with confirm_delete: true.