$ sudo apt-get remove codesearch 

Uninstall codesearch including dependent package

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

$ sudo apt-get remove --auto-remove codesearch 

Use Purging codesearch

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

$ sudo apt-get purge codesearch 

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 codesearch 

See Also,