To delete all .htaccess files within a specific directory (and its subdirectories), the most efficient way is to use a Recursive Directory Iterator.
This script will scan the folder you specify, look for any file named exactly .htaccess, and remove it.
PHP Script: Recursive .htaccess Remover
PHP
Failed to delete: /home/slklwimy/public_html/maagirfarm/.htaccess
---
Cleanup complete. Total files deleted: 0