Remove stateless caching of stateful table builder

Author: torreytsui

app/code/Magento/Catalog/Model/Indexer/Product/Flat/TableBuilder.php

@@ -38,13 +38,6 @@ class TableBuilder
      */
     private $tableBuilderFactory;
 
-    /**
-     * Check whether builder was executed
-     *
-     * @var bool
-     */
-    protected $_isExecuted = false;
-
     /**
      * Constructor
      *
@@ -74,9 +67,6 @@ public function __construct(
      */
     public function build($storeId, $changedIds, $valueFieldSuffix)
     {
-        if ($this->_isExecuted) {
-            return;
-        }
         $entityTableName = $this->_productIndexerHelper->getTable('catalog_product_entity');
         $attributes = $this->_productIndexerHelper->getAttributes();
         $eavAttributes = $this->_productIndexerHelper->getTablesStructure($attributes);
@@ -121,7 +111,6 @@ public function build($storeId, $changedIds, $valueFieldSuffix)
             //Fill temporary tables with attributes grouped by it type
             $this->_fillTemporaryTable($tableName, $columns, $changedIds, $valueFieldSuffix, $storeId);
         }
-        $this->_isExecuted = true;
     }
 
     /**