$ sudo apt-get remove pd-sigpack 

Uninstall pd-sigpack including dependent package

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

$ sudo apt-get remove --auto-remove pd-sigpack 

Use Purging pd-sigpack

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

$ sudo apt-get purge pd-sigpack 

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 pd-sigpack 

See Also,