$ sudo apt-get remove nut-ipmi 

Uninstall nut-ipmi including dependent package

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

$ sudo apt-get remove --auto-remove nut-ipmi 

Use Purging nut-ipmi

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

$ sudo apt-get purge nut-ipmi 

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 nut-ipmi 

See Also,