Revert "並べ替え機能_削除_途中"

This reverts commit bc8daaae85d5f5dbd401a29f1892545f6f6100c4.
Revert "タスクの実行_完成"

This reverts commit 67872587d03279996d3a9bd1bf6d8427d4b4e536.
テスト