AC-13818::Make ES8 to be default for 2.4.8 instead of ES7

Author: glo71317

app/code/Magento/Elasticsearch8/etc/di.xml

@@ -6,7 +6,6 @@
  */
 -->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
-    <preference for="Magento\Elasticsearch\Model\Adapter\Elasticsearch" type="Magento\Elasticsearch8\Model\Adapter\Elasticsearch"/>
     <type name="Magento\Elasticsearch\Model\Config">
         <arguments>
             <argument name="engineList" xsi:type="array">
@@ -15,22 +14,6 @@
         </arguments>
     </type>
 
-    <type name="Magento\Elasticsearch\Model\Adapter\Elasticsearch">
-        <arguments>
-            <argument name="responseErrorExceptionList" xsi:type="array">
-                <item name="clientResponseException" xsi:type="string">Elastic\Elasticsearch\Exception\ClientResponseException</item>
-            </argument>
-        </arguments>
-    </type>
-
-    <type name="Magento\Elasticsearch\Model\DataProvider\Base\Suggestions">
-        <arguments>
-            <argument name="responseErrorExceptionList" xsi:type="array">
-                <item name="clientResponseException" xsi:type="string">Elastic\Elasticsearch\Exception\ClientResponseException</item>
-            </argument>
-        </arguments>
-    </type>
-
     <type name="Magento\Search\Model\Adminhtml\System\Config\Source\Engine">
         <arguments>
             <argument name="engines" xsi:type="array">