应用: 淘宝
任务: 打开淘宝,从购物车中，把商品“ipad mini 4”删除
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: SWIPE
step_id: 3
action: SWIPE
step_id: 4
action: SWIPE