Fix for #39767

app/code/Magento/ImportExport/Model/Import.php

@@ -523,8 +523,6 @@ private function importSourceCallback()
     {
         $ids = $this->getImportIds();
         $this->_getEntityAdapter()->setIds($ids);
-        $this->setData('entity', $this->getDataSourceModel()->getEntityTypeCode($ids));
-        $this->setData('behavior', $this->getDataSourceModel()->getBehavior($ids));
 
         //Validating images temporary directory path if the constraint has been provided
         if ($this->hasData('images_base_directory')

app/code/Magento/ImportExport/Test/Unit/Model/ImportTest.php

@@ -320,9 +320,6 @@ public function testImportSource()
             ->method('getEntityTypeCode')
             ->willReturn($entityTypeCode);
         $behaviour = 'behaviour';
-        $this->_importData->expects($this->once())
-            ->method('getBehavior')
-            ->willReturn($behaviour);
         $this->import->expects($this->any())
             ->method('getDataSourceModel')
             ->willReturn($this->_importData);
@@ -389,9 +386,6 @@ public function testImportSourceException()
             ->method('getEntityTypeCode')
             ->willReturn($entityTypeCode);
         $behaviour = 'behaviour';
-        $this->_importData->expects($this->any())
-            ->method('getBehavior')
-            ->willReturn($behaviour);
         $this->import->expects($this->any())
             ->method('getDataSourceModel')
             ->willReturn($this->_importData);