I've added a discount code and successfully applied a discount to the customlineItems using the addDiscountCode API call(https://dev.commercetools.com/http-api-projects-carts.html#add-discountcode) and all the prices are calculated and the discount is applied successfully.
But when I remove the discount code using the removeDiscountCode API, the discounted amount is not removed. Furthermore if I add a product to cart after removing the discount code, the discount is not applied to subsequent products.
My Question is which API is used to remove discount from a cart which contains customLineItems?