$ sudo apt-get remove kldutils 

Uninstall kldutils including dependent package

If you would like to remove kldutils and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove kldutils 

Use Purging kldutils

If you use with purge options to kldutils package all the configuration and dependent packages will be removed.

$ sudo apt-get purge kldutils 

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove kldutils 

See Also,