$ sudo apt-get remove rate4site 

Uninstall rate4site including dependent package

If you would like to remove rate4site and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove rate4site 

Use Purging rate4site

If you use with purge options to rate4site package all the configuration and dependent packages will be removed.

$ sudo apt-get purge rate4site 

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 rate4site 

See Also,