Fix admin quote address being lost when removing all items, causing broken quote process until address is updated

Author: driskell

app/code/Magento/Checkout/etc/di.xml

@@ -49,7 +49,4 @@
             </argument>
         </arguments>
     </type>
-    <type name="Magento\Quote\Model\Quote">
-        <plugin name="clear_addresses_after_product_delete" type="Magento\Checkout\Plugin\Model\Quote\ResetQuoteAddresses"/>
-    </type>
 </config>

app/code/Magento/Checkout/etc/frontend/di.xml

@@ -95,4 +95,7 @@
             </argument>
         </arguments>
     </type>
+    <type name="Magento\Quote\Model\Quote">
+        <plugin name="clear_addresses_after_product_delete" type="Magento\Checkout\Plugin\Model\Quote\ResetQuoteAddresses"/>
+    </type>
 </config>

dev/tests/integration/testsuite/Magento/Checkout/Plugin/Model/Quote/ResetQuoteAddressesTest.php

@@ -21,6 +21,7 @@ class ResetQuoteAddressesTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @magentoDataFixture Magento/Checkout/_files/quote_with_virtual_product_and_address.php
+     * @magentoAppArea frontend
      *
      * @return void
      */