MC-22829: Revert ticket MAGETWO-96975 which introduce BIC on 2.3.4

Author: svitja

app/code/Magento/User/Model/User.php

@@ -413,10 +413,6 @@ public function getRoles()
      */
     public function getRole()
     {
-        if ($this->getData('extracted_role')) {
-            $this->_role = $this->getData('extracted_role');
-            $this->unsetData('extracted_role');
-        }
         if (null === $this->_role) {
             $this->_role = $this->_roleFactory->create();
             $roles = $this->getRoles();