$ sudo apt-get remove libixp 

Uninstall libixp including dependent package

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

$ sudo apt-get remove --auto-remove libixp 

Use Purging libixp

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

$ sudo apt-get purge libixp 

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 libixp 

See Also,