Allow deleting access review campaigns in any status

Drop the backend status gate on campaign delete and show delete in
the console whenever the user has delete permission, regardless of
whether the campaign is draft, in progress, or completed.

Signed-off-by: Cursor Agent <cursoragent@cursor.com>

Co-authored-by: Bryan FRIMIN <bryan@frimin.fr>

pkg/accessreview/campaign_service.go

@@ -205,12 +205,6 @@ func (s *Service) DeleteCampaign(
 				return fmt.Errorf("cannot load campaign: %w", err)
 			}
 
-			if campaign.Status != coredata.AccessReviewCampaignStatusDraft &&
-				campaign.Status != coredata.AccessReviewCampaignStatusCancelled &&
-				campaign.Status != coredata.AccessReviewCampaignStatusCompleted {
-				return NewCampaignNotDeletableError(campaign.ID)
-			}
-
 			if err := campaign.Delete(ctx, conn, scope); err != nil {
 				return fmt.Errorf("cannot delete campaign: %w", err)
 			}