backlog watching delete
backlog watching delete <watching-id> [flags]<watching-id> <int>- ウォッチ ID
--confirm- 確認プロンプトをスキップ
backlog watching delete 12345backlog watching delete 12345 --confirmbacklog watching delete <watching-id> [flags]<watching-id> <int>--confirmbacklog watching delete 12345backlog watching delete 12345 --confirm