می تونید با دستور زیر سی پنل رو حذف کنید!
rm -rf /usr/local/cpanel

کد:
There is no such procedure of removing the cPanel.Its better if you  reload OS and If you don't want to reload OS then follow the steps: 

1) Delete all the directory and contents of /usr/local/cpanel & /scripts
2) Remove all cPanel startup scripts 
3) Kill all cPanel related processes
4) Reconfigure remaining modules/applications which like to continue to use such as Apache, BIND etc.
cPanel has no uninstall feature, and it heavily modifies the system's perl.