在CSS下面使用以隐藏折扣块。
.checkout-index-index .payment-option._collapsible.opc-payment-additional.discount-code {
    display: none;
}
编辑
app/code/vendor/Module/view/frontend/layout/checkout_index_index.xml
要么
app/design/frontend/Vendor/theme/Magento_Checkout/layout/checkout_index_index.xml
您还可以使用“ checkout_index_index.xml ” 删除折扣块
@Prashant也是正确的;
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
    <referenceBlock name="checkout.root">
        <arguments>
            <argument name="jsLayout" xsi:type="array">
                <item name="components" xsi:type="array">
                    <item name="checkout" xsi:type="array">
                        <item name="children" xsi:type="array">
                            <item name="steps" xsi:type="array">
                                <item name="children" xsi:type="array">
                                    <item name="billing-step" xsi:type="array">
                                        <item name="children" xsi:type="array">
                                            <item name="payment" xsi:type="array">
                                                <item name="children" xsi:type="array">
                                                    <item name="afterMethods" xsi:type="array">
                                                        <item name="children" xsi:type="array">        
                                                            <item name="discount" xsi:type="array">
                                                                <item name="config" xsi:type="array">
                                                                    <item name="componentDisabled" xsi:type="boolean">true</item>
                                                                </item>
                                                            </item>
                                                        </item>
                                                    </item>
                                                </item>
                                            </item>
                                        </item>
                                    </item>
                                </item>
                            </item>
                        </item>
                    </item>
                </item>
            </argument>
        </arguments>
    </referenceBlock>
</body>