ACP2E-2737: Duplicate customers being created with same email address using import

Author: o-dubovyk

app/code/Magento/CustomerImportExport/Model/Import/Address.php

@@ -253,11 +253,6 @@ class Address extends AbstractCustomer
      */
     private $indexerProcessor;
 
-    /**
-     * @var Share
-     */
-    private $configShare;
-
     /**
      * @param \Magento\Framework\Stdlib\StringUtils $string
      * @param \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig
@@ -360,7 +355,6 @@ public function __construct(
         $this->indexerProcessor = $indexerProcessor
             ?: ObjectManager::getInstance()->get(Processor::class);
 
-        $this->configShare = $configShare ?? ObjectManager::getInstance()->get(Share::class);
         $this->_initAttributes();
         $this->_initCountryRegions();
     }