$ sudo apt-get remove libax25 

Uninstall libax25 including dependent package

If you would like to remove libax25 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libax25 

Use Purging libax25

If you use with purge options to libax25 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libax25 

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 libax25 

See Also,