MQE-2091: Remove MTF Code (framework and tests) from Magento 2.4

Author: okolesnyk

app/code/Magento/Customer/Test/Mftf/Section/AdminDeleteUserSection.xml

@@ -11,7 +11,7 @@
     <section name="AdminDeleteUserSection">
         <element name="theUser" selector="//td[contains(text(), 'John')]" type="button"/>
         <element name="password" selector="#user_current_password" type="input"/>
-        <element name="delete" selector="//button/span[contains(text(), 'Delete User')]" type="button"/>
+        <element name="delete" selector=".page-actions-buttons #delete" type="button"/>
         <element name="confirm" selector="//*[@class='action-primary action-accept']" type="button"/>
     </section>
 </sections>