$ sudo apt-get remove libcmocka0 

Uninstall libcmocka0 including dependent package

If you would like to remove libcmocka0 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libcmocka0 

Use Purging libcmocka0

If you use with purge options to libcmocka0 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libcmocka0 

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 libcmocka0 

See Also,