MC-19917: 2 Place order buttons appear on the PayPal Review page with PayPal Express only

Author: viktym

app/code/Magento/Paypal/view/frontend/templates/express/review.phtml

@@ -136,10 +136,6 @@
                             value="<?= $block->escapeHtml(__('Place Order')) ?>">
                         <span><?= $block->escapeHtml(__('Place Order')) ?></span>
                     </button>
-                    <button type="button" id="review-submit" class="action checkout primary"
-                            value="<?= $block->escapeHtml(__('Place Order')) ?>">
-                        <span><?= $block->escapeHtml(__('Place Order')) ?></span>
-                    </button>
                 </div>
                 <span class="please-wait load indicator" id="review-please-wait" style="display: none;"
                       data-text="<?= $block->escapeHtml(__('Submitting order information...')) ?>">

app/code/Magento/Paypal/view/frontend/web/js/order-review.js

@@ -26,7 +26,6 @@ define([
             agreementSelector: 'div.checkout-agreements input',
             isAjax: false,
             updateShippingMethodSubmitSelector: '#update-shipping-method-submit',
-            reviewSubmitSelector: '#review-submit',
             shippingMethodUpdateUrl: null,
             updateOrderSubmitUrl: null,
             canEditShippingMethod: false
@@ -57,8 +56,7 @@ define([
                         this.options.updateContainerSelector
                     )
                 ).find(this.options.updateOrderSelector).on('click', $.proxy(this._updateOrderHandler, this)).end()
-                .find(this.options.updateShippingMethodSubmitSelector).hide().end()
-                .find(this.options.reviewSubmitSelector).hide();
+                .find(this.options.updateShippingMethodSubmitSelector).hide().end();
             this._shippingTobilling();
 
             if ($(this.options.shippingSubmitFormSelector).length && this.options.canEditShippingMethod) {