I'm overriding a Magento 1.9 clean directory with a 5 years customized store. That store was patched and updated many times since Magento 1.3.
Database was manually fixed and all store works as expected after upgrade.
But I saw many abandoned Zend files in diff process.
lib/Zend/InfoCard.php lib/Zend/Cloud/StorageService/Adapter/Nirvanix.php lib/Zend/Http/UserAgent/Features/Adapter/WurflApi.php lib/Zend/Locale/Data/(many xml files - ldml nodes) lib/Zend/Markup/Parser/Textile.php
I don't know if this is a required Zend library anymore.
Can I remove that files?