Use minicart remove action in custom module

I am making custom module where show all current cart item,
i need delete action also on list with ajax same as minicart
I use

but it shows an error in the console
Unable to process binding “attr: function(){return {‘data-cart-item’:item_id,title:$t(‘Remove item’)} }”
Message: item_id is not defined.
how do I use mini cart js for remove action?