ACQE-7978: Unskip AdminChangeAllCustomersGroupViaGridTest

- MFTF test has been unskipped as the issue has been resolved and the test is now passing.

Author: manjusha729

app/code/Magento/Customer/Test/Mftf/Test/AdminChangeAllCustomersGroupViaGridTest.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
  /**
-  * Copyright © Magento, Inc. All rights reserved.
-  * See COPYING.txt for license details.
+  * Copyright 2020 Adobe
+  * All Rights Reserved.
   */
 -->
 
@@ -15,11 +15,7 @@
             <description value="Select All customers to change their group"/>
             <testCaseId value="MC-26040"/>
             <severity value="MAJOR"/>
-            <skip>
-                <issueId value="ACQE-4161"/>
-            </skip>
         </annotations>
-
         <remove keyForRemoval="filterCustomer"/>
         <actionGroup ref="ClearFiltersAdminDataGridActionGroup" before="selectCustomer" stepKey="clearFilters"/>
         <actionGroup ref="AdminSelectAllCustomers" stepKey="selectCustomer"/>