MAGETWO-49820: Can't register customer if customer attribute is required but not visible (#3457)

Author: slavvka

app/code/Magento/Eav/Model/Attribute/Data/AbstractData.php

@@ -364,9 +364,7 @@ protected function _validateInputRule($value)
                     __("'%value%' appears to be a DNS hostname but cannot extract TLD part")
                     __("'%value%' appears to be a DNS hostname but cannot match TLD against known list")
                     */
-                    $validator = new \Zend_Validate_EmailAddress(
-                        ['allow' => ['allow' => \Zend_Validate_Hostname::ALLOW_ALL, 'tld' => false]]
-                    );
+                    $validator = new \Zend_Validate_EmailAddress();
                     $validator->setMessage(
                         __('"%1" invalid type entered.', $label),
                         \Zend_Validate_EmailAddress::INVALID